Professional cleaning marble

If you have antique lamps, china cabinets, and even old marble home small table. The only problem you should be, how to clean the old marble table. The old marble furniture generally stain thick layer of mud or dirt. Cornstarch can clear the dust and dirt and will not damage the marble surface.

Step 1

Spray bottle filled with distilled water funnel.

Step 2

Will be lightly sprayed with distilled water in the old marble surface.

Step 3

Sprinkle a thick layer of cornstarch to the old marble surface.

Step 4

Let cornstarch to stay 24 hours.

Step 5

With a soft cloth to wipe clean sweep cornstarch into a garbage bag.

Step 6

If the stain still remained in the old marble surface, repeat steps 2 through 5.

Step 7

Mix 1 teaspoon of mild dishwashing soap and warm water in a small bowl mix.

Step 8

With a soft cloth soaked in soap and warm water. Wrung out excess water.

Step 9

The old marble with a damp cloth wipe surface to remove to the cornstarch and oil residues.

Step 10

With a dry soft cloth to wipe the surface of the old marble.

Sealing surface of old marble

Step 1

In a plastic container or small bowl pour a tablespoon of neutral pH, marble sealants.

Step 2

A clean cloth soaked in the sealant container.

Step 3

Has been soaked with a soft cloth old marble surface. In the sealant evenly wipe the surface of the old marble.

Step 4

Allow sealant to stay for 10 minutes.

Step 5

Old with a dry cloth marble surface, remove excess sealant.

Step 6

Once a year, the use of neutral pH value of the marble table, marble sealants to re-seal. For marble floors, should be re-sealed every 6 months time.

Culture stone for where?

Features: Culture Stone after millions of years of crustal movement of the plate to form a unique structure - schistosity. Schistosity is not only easy to split points, and after splitting the rock surface textures can be made into sheets, used for mosaic wall. And such fine stone structure, the layered foliation determines its good hardness, wear rate between the between the granite and marble, and has low water absorption, high acid, easily weathering characteristics.
Category: culture stone generally have two categories: natural, one Artificial Stone. Varieties include natural culture stone pebbles, sand, quartz plate. Press material can be divided into hard sedimentary sandstone and slate two. Artificial culture stone cultural stone is natural for the mother, together with inorganic materials cast from the system.
TV backdrop of cultural selection of coarse-grained stone mosaic, either acoustic, electric and can express a fine texture. Coarse-grained stone culture for a living room decorative embellishment and other large spaces.
Usage: In the modern home decoration, designers use more coarse-grained proposed TV backdrop of cultural stone mosaic, both to acoustic, and thickening of the wall, to reduce the sound impact on other room space, but also express a unique design, exquisite sense of the modern home, the formation of a strong texture contrast. If larger living space, culture stone can also be made the subject of one side wall of rich classical style, decorated in fine in the living room showing a trace of random. Or in the balcony to create a quite idyllic corner. We should also note that the main role of culture stone decorative embellishment, not to abuse, otherwise it will backfire.
Uneven surface of the color of a mixture of culture stone fireplace decorated, had inadvertently separated by numerous people back to the Middle Ages.
Optional: the advantages and disadvantages depends on the material culture stone quality and processing technology. Quality of the stone surface, without too much noise, more uniform color distribution, not the phenomenon of suddenly thick suddenly pale, no lack of neat corner cutting angle, no rough sense of touch. The poor quality of the stone can not make up a lot of "defects", such as stain, crack, color lines, potholes and so on.
Culture stone in the purchase, be sure to pay attention to the product testing report, note that the standard value of radioactivity, according to national standards, only the A type of stone is suitable for indoor use.

R.S.G marble in China, accounting for 80% market share

RSG STONES Aston cast stone industry in India, founded in 1984, Indian Jeep, was one of India's largest stone. Exports to China has become the series of tropical rain forests of India's largest supplier of marble. 26 am, reporters, general manager of Qingdao branch of India Mr. Wu Zhenhua RSG interviews were conducted.
During the interview, Mr. Wu Zhenhua told reporters. RSG is RSGupta, general manager of RSG is the father of India in 1984, Stone founded the company, it is now India's largest tropical rain forest of miners in 2008 to enter the Chinese market, the main product is a series of tropical rain forest Marble Tile . This marble is mainly used for interior decoration, used widely.
Above in quality and price have a great advantage, and then form the stone product unique. Because Aston cast mining operation is direct, that is, to the finished product directly from the blocks to the family home building materials in the construction process. This creates one of the unique nature of the product, because the world only in India, in northern India, such a stone, that stone in four colors, and eight varieties, so that even other countries in the world, no one in China the same shall stone varieties. Processing technology in India and China, a completely different process, the materials used are not the same, it has also become the company's product advantages. The current series of tropical rain forest marble RSG's market share in China, accounting for 80%, meaning that the market all the popular tropical rain forest, are cast by the aristocrats of the blocks sent to Guangdong, China made products and then sold throughout the country.
Next the company intends to build China's RSG branch is expected to be located in the north of China, because of the North market is just beginning to warm up. At the same time to broaden the brand and stone varieties. The company's main products are: five kinds of tropical rain forest: rain forests of India coffee, rainforest gold, forest green, forest brown, rain forest, the main silver; 4 all Indian sandstone: teak sand, sand Symphony, Golden Sand, by Tarkin ; 4 New Granite: India desert brown, red cast Ascot, Ascot cast white, color cast Ascot. Company hopes within the next two years to build in northern China's largest stone storage base in India, and then radiation to the six provinces of northern China and twelve cities.
In the communication process, Mr. Wu Zhenhua also told reporters about the application of some stone conditions and trends. Stone is now on China's market, it is characterized by application of relatively simple species, the application range is relatively small, which is currently the applications of natural stone. The average family will use artificial stone or ceramic tile, because it's relatively low cost. But with the improvement of the quality of our lives, some young people, or some fashion, they are more like to have personalized home improvement, so in the future development trend of home building materials to the individual development.

Collection of types of marble

Currently, the new marble tablets purchased in the stone field, and the price is not high, the average price of about 0.5 square meters in the hundred or so new film, and those pictures rich with pictograms of film prices on thousands or even million often individual's quality is also not unusual to sell several hundred thousand. As the old marble tablets, surviving mostly by the top grade, so the price of a lot of money, tens of million is also very common. Currently many civil marble block collectors, but most people see the marble, the main material for furniture from the collections of the true sense there is a certain distance.

     Marble collection dating back to the Song Dynasty, there was a compound marble screen for viewing. Collection of Ming Dynasty marble collections have entered the ranks of high-grade, to the Qing Dynasty have been a special obsession with marble collectors and connoisseurs.
     How to choose the marble collectors should master the skills, but also Jicang and investment entry point. Standards of marble from its characteristic for tours starting to grasp the texture, shape, texture and color of the four aspects. If a piece of marble and shiny with fine texture, Oncogenes thin shape, changing the texture and prominent features, Xianrun vivid color, then that is their top grade. But the real highlight is undoubtedly the appreciation of the value formed between the texture image, especially with the vivid and realistic image of the integrity of the screen, often determines the quality or not, and thus affect the market price.

     In view of the form shown for the marble features of mood, very close to the impressionistic paintings, and this is precisely the high realm of Chinese painting, very engaging and has the appreciation of flavor, appeals to the imagination. So how to identify what is treasure to be launched by the rich imagination of collectors, once discovered the secret and essence of the marble piece is so ordinary to sublimate, to show art of charm and market value, and this is Jicang and the most important investment areas of marble.

     Therefore, texture, shape, color, posture, rhythm and texture, the texture is preferred, only the texture pattern formed to achieve the charm of the state, before considering other features. After all shades of colors formed by the texture and lines of the density of wet and dry actual situation, is the key to highlight the pattern of coordination, but also for the superb painting environment, the essence of full flavor.

     Jicang and investors need to be reminded that a lot of the old marble tablets, often together with the furniture or frame, some frames or furniture made of wood itself is fine, also has collection value, it can not be a waiver, but should Jicang together. In addition, there are marble tablets are pros and cons, if two patterns have emerged painted surface characteristics of environment, you are fine area in which different sides of the painting ornamental value throughout there will undoubtedly be more to improve their social status. This is the potential for mining investment in the new film, is particularly critical, can be said to be a shortcut.

     Currently, the marble Jicang and investors are not many rocks in some cities on the market, the price of the new film is not high, the average collector can basically afford, but relatively difficult to procure the boutique. However, the pattern on the marble tablets Jicang need to rely on imagination and appreciation of those standards, so in recent years, many people out of the cheap and Amoy to the fine, which requires trained to a high level of artistic accomplishment and appreciation.

Lemon juice to clean the marble countertops

Many ways to clean the marble, but there is a way to use the most simple and that clean the marble with lemon juice.
Marble countertop with the best regular basis, mild detergent, a damp cloth, then wipe dry with a clean soft cloth and polish.

     When the surface stain, the number of light caustic is appropriate, such as lemon juice or vinegar, should not use soap or soda powder fragile nature of things to clean the marble. Use lemon juice should be very aware that their stay should not exceed 1 minute, if necessary, repeat the operation, and then wash and dry.

     Cosmetics, tea and tobacco stains, hydrogen peroxide can be painted, to stay for two hours, then wash and dry.

     For traces of oil, available ethanol (alcohol), acetone or lighter fluid to clean, then wash and dry. If the marble furniture was burnt cigarette butts, people should consider requesting the repair.

     Of course, for minor abrasions marble countertops, marble available cleaners and specialized care agent, severe wear can be polished steel ball, and then polished with an electric grinder.

Radiation marble floor tile and stone

Era marble floor tile has been widely used in various areas, not only in the high-end buildings, the need for both elegant and functional areas is also common marble floor of the figure. Marble Tiles to show the beautiful buildings without compromising the taste and its practical use.
    Marble tiles for the floor very attractive, because no two identical marble tiles. The texture of each brick is unique and distinctive, especially when these patterns in different colors and sizes together. This is why the marble tiles to be installed in different ways both decorative and functional home in the cause. Brick exterior quality and natural beauty will help create a range of different types, different color, pattern and texture of marble tiles combination. Therefore, high abrasion resistance, gloss, waterproof anti-corrosion, bright and generous marble tiles commonly used in homes, hotels, restaurants, subway stations and airports, stations, terminals and other densely populated floor, wall decoration.But when people are enjoying the time of these decorative materials are worried whether there is radiation of stone, in the face of such problems, we will analyze specific issues. Some rocks contain uranium, radium, thorium, potassium and other radioactive material, radium decay of radon harmful. General Administration of Quality Supervision, Inspection and Quarantine issued a "Limit of radionuclides in building materials" standard will be natural stone in accordance with its level of radioactivity is divided into A, B, C three categories: According to experts, natural stone and ceramic tile divided by the level of radioactivity ABC three categories: A class of products "(only the A class can be used indoors) can be used in any situation, including the office and family room. Ruxia red, cherry red, general red, Taiwan red, Xinjiang red, Isle Red, Anxi Red, Maple Red, Xili Red, white linen Tianshan, Tianshan Red, South Africa, red, red in Xiamen are A commodity; B Class A class of product is higher than radioactivity, not for the interior surface of the room, but all other buildings can be used for internal and external finishes. Natural stone is a B class of radioactive products for the Indian Red, Guilin Red; C products of radioactive than A, B two types can only be used outside the building finishes. Is a C class of goods for the Yongding red; more than C class standard control value of natural stone can only be used for sea walls, piers, and monument and other purposes. Commodities on behalf of Red Azalea.
    But most of the stone product on the market did not undergo radiological examination, the stone and no written A, B, C. Therefore, we determine whether the radiation depends mainly on the stone type difference. Generally speaking: Marble is the layer change rocks and soil containing radioactive material is basically the same, regardless of its radiation. Granite is volcanic rock, which contain radioactive material and volcanic strata in the formation of substances, radioactive substances and non-ferrous metals with regular students, and non-ferrous metal compounds have the color of rock, so we can rock color, flower inference about steel containing radioactive material is stone. By and large red flowers and some green stone with steel, the probability of radioactive material is relatively large. Common stone in the following flowers containing radioactive material is steel, stone fairly certain: India Red / South Africa, red / red azalea / rhododendron green. The general white and black stones will not have radiation.Since the presence of radioactive natural stone problem, then choose whether man-made stone is safe? Some experts say: "Clay is a man-made stone, natural marble or granite stone as filler, and then cement, gypsum and unsaturated polyester resin as the binder, by mixing shape, made of polished . it contains radioactive elements and natural stone is no different. If it is to use radioactive material processing with high levels of artificial stone, its content of radioactive elements, radioactive than natural stone content is even higher! choose man-made stone, but also natural stone in accordance with the selection criteria, select the appropriate product category. "
    Read the above introduction, I believe we use on Marble Slab and stone tiles have a certain understanding of radiation, I hope you later in the beautiful decoration but also can note the physical health, in the purchase of the same stone used for home decoration, if not the relevant test reports, preferably holding a test product samples to qualified institutional testing, or testing personnel to the home you whether the level of detection of excessive radioactivity.

Need to conserve as marble

Marble is a kind of maintenance does not require the durability of materials, which many people dealing with marble, a point of view. In fact, this view is wrong. Some countries in Europe and America, stone conservation household.
Cleaning marble conservation and protection are two key points. Are two main methods of protection construction, done before the construction of a marble protection, one is done after the construction of stone protection. Marble normal daily maintenance approach is very simple and requires no special tools.
Most at home and abroad with an advanced high-tech stone products - permeability Protectant (in the stone market places specializing in stone conservation can buy.) This cleaning agent when dissolved in water can play three roles, clean protect the ground surface, which contain micro-grain, but also improve the brightness; removal of water may exist, to substantially reduce the need for regular cleaning.
Follow these simple maintenance points to extend the life of natural marble rock, and long-term bright as new.
Marble in the conservation process, the need to pay attention to some principles and issues:
First, the selection of marble curing agent:
Each stone has its own characteristics of curing agent, in different environments, different installation process occurs when different results. The correct selection of marble, marble curing agent is to ensure that the key to the quality of maintenance works. If you choose properly, not only in protection after construction is not only not achieve the desired effect, but will make the problem more complicated.
1. Protection requirements based on customer choice, if the customer is to prevent efflorescence, rust, etc., the general type of marble with silicone curing agent; if we are to improve the overall water and dirt capacity, generally using organic fluorine-based curing agent of marble.
2. Some suggested the use of compact structure, oil Marble Tile curing agent. The infiltration of oil marble curing agent can be more deeply into the marble interior; for the general structure of marble, marble, oil and water-based curing agent can be selected.
3. For the restaurant, cooking and so easy to polluted areas, preferably organic fluorine-based curing agent in order to improve the marble marble surface fouling ability.
4. For the outdoor marble, you can use silicone-based curing agent, but requires the product UV resistance, water resistance and acid resistance are better.
5. The wet paste or filling installation of marble, marble bottom suggested the use of special curing agent. But also focus on the alkaline curing agent, does not affect the adhesive fastness of marble and cement.
6. For the rough surface of the membrane surface of marble maintenance treatment should be used as raw materials of silicone membrane-type marble curing agent, this product hardness, bonding strength, but not easy to yellow; best not used to acrylic acid sealant on the ground, this product is mainly used for the bottom seal, make use of marble in the marble surface peeling and discoloration.
7. The deeper the color of marble, after the use of protective agent is easy to change color, so be sure to do first select the protective agent sample test.
Second, the purchase of marble curing agent considerations.
1. Curing agent not only depends on the instructions of marble, but also field tested by the future before they can be selected.
2. Marble curing agent used, do not be fooled by the product surface effect, surface effect is only temporary, unstable.
3. Special attention to the choice of curing agent, the use of marble curing agent will not change the color of the marble, the surface residue is easily removed, if the surface brightness of the marble.
4. Do not select complex construction process of the curing agent, process is too complex will be a direct result of rising costs.
5. Construction site for the enclosed spaces where not to use oily marble curing agent, air circulation may lead to construction of poisoning.
6. Polished marble surface Do not use membrane curing agent-based care, because too smooth marble surface will affect the curing agent adhesive fastness, easily.

Laying marble granite steps

Marble and granite surface plate should be made of natural marble and granite plates. Plate surface requires clean and bright, vivid color, no marks, spin pattern. Marble, granite surface should be used with the next layer, the bonding layer can be 1:4 to 1:6 or 1:2 cement sand mortar. With cement sand thickness 20 ~ 30mm; cement mortar with thickness 10 ~ 15mm.In laying before the board shall be the design requirements, according to stone color, pattern, pattern, texture, and so try to fight number; When the sheet cracks, off angle, warping, and surface defects should be removed, the plate shall not be mixed with different varieties of use. Paving plates should be at the grassroots level surface (mat or floor surface level) vertical and horizontal alignment on the elastic, quasi-line position generally taken away from the wall, place a piece of sheet width.Marble Panels, granite plates should be soaked in water, or surface to be wiped dry before thousands lay. Marble, granite sheet at the beginning of the laying of alignment from that side of the line aligned alignment sheet.Sheet laying, paving at the grassroots level with the surface layer, when combined with water sediment layer should be dry mixed evenly and the water spray; when combined with cement mortar layer, it is desirable to dry hard cement mortar. In order to enhance the binding layer and the plate bonding, should be used in combination with the level of applied slurry of cement or dry sprinkler shop, then laid on the plate aligned with the location layer. Alignment by laying the first row, after the subject lines laid by the previous line.Paved the plate should be smooth, straight lines, mosaic correct; plate, the plate and the binding layer and the corner trim and the wall should be close at the puzzle together, without gaps. Marble, granite surface layer of the surface should be clean, smooth and solid; sheet patchwork no requirements when designing the width should not exceed 1mm. Marble, granite surface should be protected after the completion, to be combined with layers of cement mortar strength is required, before waxing to achieve smooth and clean bright. Surface layer of natural marble pieces can also be used to fight, that is, pieces of marble tiling. Require the use of color coordinated, consistent thickness, with no sharp corners of the marble pieces, which combines application layer of cement mortar, fragments of voids between the cement mortar or concrete should be used with the stone tablets of flyash filled. Spell broken the surface of the marble surface should be clean, smooth and solid; fragments coordinated colors; pieces to fill the gap between the dense, not too large gap phenomenon. Marble, granite surface height difference between the two plates adjacent to the permitted deviation of 0.5mm; surface layer plate ranks (seams) in 5m length, the straightness of the allowed deviation of 2mm; surface layer of surface roughness with 2m ruler check the allowable deviation is 1mm. Spell broken marble surface flatness tolerance is 3mm.

Natural marble decoration

Natural marble, granite as a high-grade sheet metal wall decoration materials, has a long history, and it is an ancient, traditional decorative materials, the surface smooth, delicate as a mirror, giving to the noble and elegant visual effects. Same time, it's wear resistance, and easy to wash away. Marble and granite are natural stone plate, although the same, but the performance is different, how to properly use reasonably related to the decorative effect is satisfactory, whether the use of long-term problems.

    Dense texture of marble, the surface hardness is not, can process polished, it is a metamorphic rock, mainly composed of calcite and dolomite. Marble gray, green, red, black and other colors, and with beautiful patterns.

   Department because of the deep granite rock, compact structure, engage in high pressure, porosity and water absorption is extremely small, cold-resistant wear resistance, and has good resistance to weathering. Granite is the most widely distributed igneous rock, is a typical deep rock, its main mineral is extremely small amount of feldspar and quartz and mica, the color is usually gray, flesh red, gray and red color and so on.

    Marble, granite plates in the decoration should be carefully protected, when the ground when the vertical moving corner, the front corners first, to avoid the ground; the same time to avoid the first corner of the ground. Larger size marble slabs or granite plate, it is not appropriate operation to prevent the bending moment generated due to the rupture of weight in recent years, the marble and granite granite decoration process, because the unit area, wall joints less, the overall effect of the decoration is good, so the processing unit area tend to large family room but not too much decoration or unit area. Period in custody, because there is a certain gap between the marble, stained particles have a certain force, met the body colored dye will penetrate absorption. Therefore, to prevent the acid and alkali, chemicals, nonferrous metals into direct contact with infected body smooth.

    Marble and granite plates because of their heavier, for the security firm, and the installation of grass-roots level to take the plate and tied or linked to, and then filling the fixed method, where the decoration more than 1.2 meters height, are to use wire lashing, the general practice is at the grassroots level the surface of the corresponding size of the diameter of the welded steel mesh, steel bar embedded with pieces of grass-roots or Expanding stud weld, sheet steel lashing wire mesh and the grass-roots anchoring.

   In addition, grass-roots to clean and check and proofread reserved holes and embedded parts of the structure, designed to be embedded whether the French line. Flat and vertical wall how a greater impact on the Xiangtie, where failure, if not addressed, will Xiangtie bring some difficulties. Wire or plate is fixed in diameter and 6 linked to the steel web. Diameter of 6 embedded steel bars and structural iron or expander bolt weld. Steel mesh to weld, without vibration and bending phenomenon.

    Xiangtie marble or granite wall at the time, the location where windows and doors, door frames should be well established, the location is correct, firmly installed, under normal circumstances, both sides of the box Xiangtie face, the face should be flat with the frame.

    When installing the wall, should determine the location of the first laminate, to consider the thickness of sheet metal, pouring the width of the size of the share of steel mesh, and then draw the first baseline laminates. The next will be the first laminate shells along the wall, if skirting board, skirting board level first line to play great. With out good and has been completed with the banding line fixed plate right seat. When the wire binding or linked to work completed, with a wedge stone's catchy plugged, and at any time by foot and foot level with the stone surface, checking the level of state formation and catchy. If inappropriate place, you can align the wedge, so that the surface Euparagonimus, padded in a thin sheet lead sheet along the catchy tune is straight. In order to start the installation from one direction, from one end attached to the other side.

    Sheet surface inspection, the quality are qualified, beginning with the grassroots to the plate about 3 cm gap between the filling inside. Volume ratio of cement mortar: sand = 1:2.5 (volume ratio). When filling slowly with a keg into the slit, into the slate Do not touch moving, do not just poured from one, but along the side, evenly spread, a layer of stone finished filling paste, mortar behind the initial setting for cleaning up more than catchy pulp, and clean with a cotton yarn. After a clean slate with the above procedure to install another layer, and then click Xiangtie completed. All installed, remove all traces of plaster and I paste, then paste the same panel of the same color fringe embedded suspected clean edge, so that the gap density, color the same.

    From an artistic point of view, decorative marble wall of the operator, it is also a process of artistic creation. Because marble is a natural texture and color differences, as can the natural texture and no laws have different colors artfully combined to obtain the effect of murals in the puzzle, the process of making plates, so that rational choice, the original discovery, there will be no regular texture, Jan of its strengths, its provision of short, artistic processing, Xiangtie finished, giving a full sense of the screen.

What is a Artificial marble

With the development of modern architecture, decorative materials made of lightweight, high strength, beauty and variety of requirements. Artificial decorative stone is in this situation to arise. It is light weight, high strength, corrosion resistance, pollution, construction convenient, patterns can be artificially controlled, is an ideal modern building decoration materials. Artificial Marble raw materials used by manufacturing and production process, and can be divided into four categories:
(1) cement the artificial marble, artificial marble is a variety of cement as a binder and sand as fine aggregate, crushed marble, granite, industrial waste and other coarse aggregate, the ingredients, mixing, forming, add pressure steam curing, grinding, polishing and made, commonly known as terrazzo.
(2) Polyester artificial marble artificial marble which is unsaturated polyester as binder, and quartz sand, marble, calcite powder mixing, casting molding, under the action of the curing agent curing effect, by stripping , drying, polishing and other processes and made. More this method of production of artificial marble. Unsaturated polyester, good gloss, light color, adjustable into different distinct colors, this low viscosity resin, easy to shape, fast curing, curing at room temperature.
(3) compound Marble Slab artificial marble is that inorganic materials and organic polymer composite composition. Bonding with inorganic materials after forming the filling, then green body immersed in the organic monomer, polymerization under certain conditions it. On the plate, the bottom with a low and stable inorganic material, the surface layer made of polyester and marble powder.
(4) sintering the artificial marble, artificial marble is feldspar, quartz, pyroxene ", calcite powder and red iron ore and a small amount of kaolin mixed with slurry prepared stock, with semi-pressure molding, in the kiln furnace using high temperature of about 1000 C sintering.
    The four Artificial marble decorative plates, the most commonly used polyester, its physical and chemical properties of the best, easy to design patterns, a reproducible, suitable for many uses, but the price is relatively high; cement least expensive, but corrosion resistance is poor, prone to cracks, only suitable for the plate. Two other complex production process, apply very little.
    Polyester artificial Marble Tile (often referred to as artificial marble) is imitation marble surface texture processed, have similar characteristics of the mechanism of marble, and designer of self-control patterns can be determined with good reproducibility; and Artificial marble and light weight (25% lighter than the natural marble or so), high strength, thin, good corrosion resistance, anti-pollution and better machinability, can be made curved, surfaces and other shapes to facilitate construction. High-quality physical and mechanical properties of artificial marble can be equal to or better than natural marble. However, less than the natural color and texture of natural marble, beautiful and soft.
    The impact of raw materials for artificial marble, and many outdoor works for artificial marble is not ideal. Mainly is aging fast, color changes, brightness changes, use the period of time, decorative panels to serious distortion to the upturned corners, and some projects had to use expansion bolts to secure it. Therefore, the artificial marble should not be a large area for outdoor cylinder can be used for outdoor, facade decoration, but when the application height of more than 1.2m pieces of steel wire or stainless steel fastened.
    Artificial marble floors and walls can be used for indoor decoration, but also the production of sanitary engineering students, such as wash basin, bath, toilet and so on. In addition, the artificial marble can also be used to make crafts, such as imitation stone carving, jade carving products, etc., for indoor decoration.

How do you do the marble radiation

Marble, the term has been in the previous period and the "radioactive radiation" associated with so many consumers want to use the marble as "marble radioactive" discourage people who have used the marble is on pins and needles, people often call Marble Panels asked where the radioactivity can be detected? If the home is paved marble how to do? The meaning of anxiety and loneliness. marble in the end is how the radioactive matter, can safely use at home? For a range of issues, China University of Geosciences Department of Applied Geophysics, Associate Professor Sheng-Li Hou made a reply.
Have only harm the Marble Slab more than the standard
Hou analysis is that the nature of any substance contains natural radioactive elements, radioactive elements in different materials but different contents. Around us in the soil, water and even air are radioactive elements, non-marble of the building and furnishing materials such as cement, steel, brick, whole body, like brick and marble contain other radioactive elements. Take the whole body tiles, is fired by the addition of other materials made of clay, clay is formed by the weathering of rocks, clay and marble were all naturally occurring, radioactive elements if the clay is relatively high, that the whole body by firing bricks radioactive element content will be high accordingly, so that only the marble only radioactive, and other radioactive material does not contain the view is not correct. Period of time before the Ministry of Health issued a "health protection standards for construction materials" on the building materials in the activity of natural radioactive elements were restrictions to ensure safe use.
80% of the marble can rest assured that for indoor use
So what kind of marble suitable for use at home, Marble Tile, how to choose? Hou said that as early as 1993, the National Building Materials Bureau issued a "Classification of natural marble products Radiological Protection Control Standards", of natural marble based on the level of radioactivity have been classified in the natural marble is divided into A, B, C three types of products, A class of products can be used in any occasion, B products can be used in addition to the room outside the interior surface of the internal and external finishes of all buildings and industrial facilities, C class can only be used as a standard marble finishes outside the building. From our nearly 200 samples of test and analysis results, 80% of the marble samples are used in any situation can be class A marble. There are still some of them were very low radioactive marble, even more than normal cement floor, brick radioactive content was also low, in the indoor use of this marble, can play a shielding effect, reducing indoor radiation, with environmental protection. Because some people lack the knowledge of radioactive, one-sided understanding of the formation of some, such as light-colored marble is now suggested that the low radiation than dark marble, in fact, this is not absolute, and many dark marble (such as red) of the radioactivity level is not high A class at the required standards, is lower than some light-colored marble, which we did the test can be proved.
How to detect whether excessive indoor radioactivity
How to detect whether excessive indoor materials, which is many people's concern. According to Hou introduction, conventional testing methods is room Neijia Ma spectroscopy analysis and radiochemical analysis, ground samples to test, sample letters, analysis period of 20 days or so, long period of relatively high costs. In view of this situation, quality monitoring in the National marble Centre's support, China University of Geosciences (Beijing), Department of Applied Geophysics, China marble Material Industry Association and developed the first marble of radiation detectors and their associated measurement techniques, to obtain Beijing Quality and Technical Supervision issued the certificate. This portable device which can be brought to the scene to test, no damage to finished products, finished products can be placed directly on the test, the test range of up to 50 × 50 cm, and the test time is short, usually takes about 10 minutes can be measured.
Finally, Hou said that the home environment as a whole, as long as the environment of radioactive indicators have reached the standard, not harmful to human impact. Therefore, we must address the "marble of radiation," this issue, do not fear a certain kind of radioactive material exceeding the blind removal, waste and unnecessary trouble.

How to fix the marble tiles began to fade

In the first stone for carving, the marble stone is one of the best. As the years change, this hard, metamorphic rock crystal has been widely used as building materials, such as Marble Tile.
      Marble is a calcite, can be polished, in the wide range of decorative and construction purposes. Diversification of its color, black, white, red, green, yellow and so on. They usually have a beautiful texture or context. However more porosity of marble, so susceptible to staining or acid corrosion.

      Nursing marble tiles
      In order to care marble tiles, cleaning the surface with warm water from time to time, and then dry with a clean cloth. In order to avoid cracks in the skin with a wet wipe clean with a soft surface. At least once or twice a year dishwashing liquid mixed with warm water cleaning solution made of marble tiles, Artificial Marble and installed according to the frequency of regional decisions. Finally, rinse and dry in order to achieve better results.
      If you find that marble tiles have begun to fade, can be coated with a thin layer of wax. Although this is not a permanent solmarbution, but the wax will help restore luster, but also play a role in protecting the marble surface.
      If the marble is white, you can not wax because over time they will turn yellow. In addition, the curing agent to try to clear them. Curing agents to help protect the marble tiles staining. So as to achieve rapid removal of dust effects.
      Special Cleaning
      When the marble tiles began to fade and dim, the available business of polishing and cleaning it back. You can purchase marble from the sale of these special cleaning products.

      Under normal circumstances, the company has a range typically used for imports of imports of polished marble cleaner. So they can rest assured that use. In addition to effectively restore luster, these special cleaning agents than those of traditional care products faster and more convenient.
      You can also use polishing powder or tin oxide polishing dim marble tiles, marble tiles or corrode. You can use a clean wet rag coated them to the marble surface, be sure to clean the wet areas. Electric polishing machine for polishing marble tiles. However, tin oxide polishing powder or easily obtained. If you can not find these things, may apply to the production and sale of gravestones of people seeking help to repair the faded marble.
      Marble tiles stained. Com
      To remove stains on marble tiles can be packets of white absorbent material such as blotter paper, napkins, facial tissue and paper towels, soaked with chemicals to help dissolve the stain. These chemical products available from your local hardware store or dealer to buy marble tiles.

      If you find that your marble tiles have begun to fade, do not worry. There are other ways to restore its luster. If you think you can not restore Marble tiles can contact your local dealer. They have products and professionals can help you solve these problems.

Home maintenance marble marble floor

Marble looks beautiful, so often used as flooring, marble floor, fireplace mantels, desktop and other decorative and robustness needed the table. However, people also come to realize the shortcomings of marble, that is, it can easily be scratched, discolored, stained, leaving permanent scars. Even so, the charm of the marble is still unstoppable. It is unrivaled. If you like Marble Slab, but they care about its flaws, then you can choose to man-made marble marble floor, artificial marble floor, marble table, and so artificial, Artificial Marble, can solve your problem. You need to remember is to keep the marble in the best condition, it is necessary for care. If the marble scratched and there are stains, dust, as long as not too serious, you can be cleaned and repaired. Marble Maintenance
     You'd better take steps in advance, not only to remedy the situation so damaged. Of course, no matter how carefully you care, when there will be damage. Glass or glass with something to drink fluids, it is best to spend the tray, to avoid moisture. If the marble floor, you can place frequently been put through the mat. You can also put plastic sheeting on the marble top furniture, on the one hand to protect the marble, on the other hand does not affect the appearance of Marble Tile.
     No matter how carefully you clean out the marble eventually become dirty, you can clean with a soft sponge. Do not be too wet sponge, in order to avoid leaving too much water stains on marble. Then dry with a soft cloth until it re-flash. If the marble surface is dirty, wet sponge does not work, you can use small amounts of borax, with a clean damp cloth, then polish it.
     Many times may make you scrub the marble marble floor and dull, then you can use polishing so as to restore luster. Note that in the polishing process to mix a small amount of water, then dry with a clean cloth, that it beautiful as new.

The advantages of marble kitchen countertops

Marble kitchen countertops to create a unique and lasting home environment. It is also the hardest on the market, the most exquisite natural stone. The most important thing is not exactly the same two stones, so you can create a unique and luxurious kitchen. As long as careful care, your marble kitchen countertops will never fade.

Why is it so popular it? What are the advantages of it in the end it?
1. Value-added
marble kitchen countertops can be added. This makes it has investment value. It can add elegant style to the kitchen, when the sale would enhance the overall value of housing. If you have a capital renovation, installation of a marble countertop is a very sensible approach.
2. Aesthetic value
marble is a natural material. It has a century of history, but only recently for the home forty years to do. Compared with other materials, it may be more expensive, but it is a good home investment. If you have some money, this is a good home improvement program.
3. Nature's unique design
marble subtle color changes are man-made products can not be duplicated. It will make your home become personal additional features for the kitchen. You may have noticed, with the room light changes, marble colors also change. marble colors, spots and other styles throughout the entire stone, unlike marble, the only man-made surface layer. These characteristics of different stones vary.

Amazing color combinations. Because of this material all over the world, variety, its color is ever changing. Various regions of the stone has its own unique quality. Shading from simple to complex, warm, deep. marble kitchen countertops with almost any of the sink and matching accessories, such as ceramics, copper, stainless steel and so on. This is not just a fad. It can be said that it won the people's favorite, has a solid track record.
4. Bactericidal
Because of its texture, which is very hygienic kitchen materials. Because it is not porous material, so it is not easy and some do not harbor bacteria and other dirt. Mold will not breed here. Of course, if you use the marble sheet, filling line that can lead to mildew and staining.
5. Easy to clean

If you have some basic common sense, care and cleaning is very simple. Daily cleaning with a soft cloth or just a few paper towels and ordinary soap. As the texture is dense, this stone is not very large pores, so staining is not a big problem. Once it is sealed or polished, it can prevent moisture. To re-seal every 1-3 years.
6. Family-friendly kitchen
From all aspects, if the family has children, this is a good choice. No matter what they do, basically will not damage your table. Maybe you just need to tell them not to hang in a fragile corner of the table, because in the long run, this can cause troubles.
7. Indoor maintenance
This stone has another function. If any parts damaged, it can be repaired. Just do it yourself repair. To the provider, describing damage to the state to get expert advice.
8. Hard to resist

Hard surface of marble can not easily be scratched, in addition to marble or diamonds. This kitchen is very practical. You can rest assured to use without fear of damage to kitchen countertops. marble kitchen countertops absolute guarantee. marble can also easily scratched lasting gloss to keep one of the reasons.
9. Temperature
marble surface temperature changes have a strong ability to adapt and will not blister or crack. Hot utensils on the table will not leave an imprint in the new. Even so, the best pad in the pad under the hot object or a tripod.
10. Chef's favorite
Cook like marble countertop work. You can even cut things on the table directly without causing damage. You can also knead the dough on top. This cold surface is very suitable for dough.

Once installed, marble kitchen countertops, you will find under the kitchen that everyone loves.

Home decoration with color marble

Home decoration, consumers want the decoration to home to warm and comfortable, then we must pay attention when the marble in the decoration of color matching, and related quality control.
Color matching
Do not have the color and feel different, because a lot of natural marble rock colors, so you choose the marble, the color is also very important. Red symbolizes the general warmth, passion, decorating the hall with red granite, gives a feeling of celebration at home. White, gray and white clean and bright, fit for a bathroom and kitchen. Dark gray and black gives a solemn sense of steady, with several shades of different colors and parquet, will prioritize and increase a sense of lively and coordination.
marble used in different places and have different colors. Limited by light, the ground should not be selected when fitting the darker marble floor; in the table decoration, in addition to the kitchen, the color should be bright, beautiful marble pattern, such as big flower green'',''''''big gray and so on. The kitchen table should be of light-based. Round table, lamps, tables, chairs and other marble products, due to frequent contact with everyday life, taking into account anti-pollution, such as tea, ink, juice, wine and other pollution, which marble to deeper color, like green, blue, red marble, flower marble can be.
Second, is to pay attention to quality control, quality decorative marble is a complicated systematic project, which includes marble quality, technology and quality.
Process Quality Control
In recent years, the marble plaque hanging process has been rapid promotion. There are steel pins connection method, the back bolt method, short-slot coupling method, on slot coupling method, composite association law, which is located in the main structure of the major stress points; through a metal pendant will be fixed in marble buildings, the formation of decorative marble walls.
The main advantages: First, improve the safety and durability, can effectively avoid the wet plates affixed to appear in the hollowing process, cracking, shedding phenomenon: the second is to keep the walls clean and beautiful, to avoid the white, color and so on; three is to improve the working condition, reducing the labor intensity, speed up the progress of the project. marble curtain wall hanging method obvious advantages, but the cost is high. How to ensure quality, security, reduce costs, improve construction technology, improving economic efficiency, is the decorative marble must first solve the issue.
Quality control materials
Decoration marble material is the key to ensure the quality, in addition to marble, the main steel (aluminum) frame material, siding, hook, structural adhesive and sealing glue, such as weather. The choice of aluminum, steel and other profiles, all must conform to specifications.
Aluminum surface of the plating layer must meet the requirements of the national AAl5 level and above, must be hot dip galvanized steel or other anti-corrosion materials for processing, to ensure that it does not rust. Connection board must be linked to more than 3mm or 4mm stainless steel over aluminum. Structural adhesive and weather rubber must meet the national standards to ensure that no oil leakage.
Decoration, many aspects of attention is the key colors, marble quality is good or bad relations with the use of time, these are the consumers of concern.

Optional ground marble material considerations do

In the home decoration, natural marble is the most popular. Perhaps you are tired of boring, stale polyethylene floor, do so now. Natural stone flooring you can create an elegant, sophisticated home environment. The slate floor is a good choice, it will definitely surprise you.
    What is slate?
    Slate stone marble is solid and lasting materials. The bottom of the slate will be processed after the smooth surface can be ground floor level on the floor. The top is the appearance of natural slate. Slate has a natural texture that helps to prevent slipping.
    Choose three things to be considered before
    Weight. Is required before installing slate flooring in advance to consider some things. Slate is very heavy. Therefore, base plate must be able to withstand the weight of slate flooring.
    Base plate material. In addition to the base plate material should also be considered. If the weight or thickness of the base plate material is not enough, slate flooring is likely to crack.
    Price. Buy things to take into account certain price. From the long-term interests of view, slate floor is worth it. Slate Flooring is durable.
    The advantages of slate
    Colorful slate floor, gray, brown, red, green and so on. Slate tiles with a variety of colors, make your room become colorful.
    Slate can be used to lobby, bathroom and kitchen, the most commonly used in bathrooms. Can be installed in any room at home slate. Even in the bathroom and the kitchen, you need not worry. Although the slate is stone, but it did not affect the water.
    The value of slate is that it has another advantage. Not only in the long run the value for money, but also because it can make your house value. Install a new slate floor more attractive eyes, to be more popular in the sale of more valuable.
    Installation
    Marble can be DIY project. Install it yourself can save a significant amount of installation costs. If the room is not, you can get a weekend.
    If you really intend to install their own, we must first know the correct installation techniques. You can go to the building materials store to ask the next slate floor installation method. Or to the bookstore or online to find information.
    Please also good for people to install. First, you do not need to worry about improperly installed. Second, if you have any problems after installation can be compensated.

Marble finishes processing

International collectively marble, with its natural simplicity of texture, bright color and beautiful, is widely used in building interior walls, the marble material relatively loose, soft texture of relatively high water absorption. More joint line, it is in the processing, transportation, installation and use of the process prone to various forms of pollution and warpage, and other volatile optical phenomenon, affecting the decorative effect, so the marble industry, nursing care is also a required course.
Marble finishes to the status of the comparative analysis of care can be divided into:
1, the renovation of ground handling
2, the local gap processing
3, cleaning protective treatment
4, crystal polished
5, seamless fill treatment
Let us first talk about the renovation of grinding, polishing crystal construction process:
First of all pointing in the renovation before grinding, and then do water, do the sealing, the purpose is to enable the stone water as little as possible, to reduce the stone water law (because the renovation of polished use of water absorbed by the stone, cement and the following this water will soon be inhaled, absorbed by the cement and the water is very difficult to remove, resulting in the follow-up stone quit, there's disease, such as: water spots, back to base, Bai Hua, back to yellow and so on.) Conditions permitting 800 # and then do a better waterproof.
1, coarse: in ground water do before groove joints, and sealing. Results to be out of water, use 50 #, 150 #, 300 # dry grinding. After the ground water 300 #, 300 #, 500 # using the diamond grinding hard resin block (do not use soft water mill pieces coarse grinding, prone to waves of flatness) can not be too coarse to the water to remember the most good use of spraying methods, each with a grinding mill finish mop clean water, dry thoroughly and check notches, leaving a deep grinding is zoned Road, worn away by grinding 50 #, and so on, the machine grinding away Tic Tac Toe , coarse grind 45% of the total time for completion of the project is to ensure the quality and acceptance on the key link.
2, fine grinding: 800 # do after the water before grinding, and other water effects out, using the 1000 #, 2000 # diamond film resin soft water mill, finely ground 35% of the total study time, after the fine grinding to 2000 # gloss up to 50 degrees.
3, grinding: grinding stone to be 70% before the dry, first filled with natural stone sealing agent (distilled water A10) for the pre-treatment, so to fill the loose stone in the same time strengthen the material. Then use 2000 # - 3000 # diamond film spray A2 resin soft water mill grinding, dry, and then continue to dry until it has come to light, this process is to fill the stone sealing and ion exchange, grinding time 20% of the total grinding , after grinding to enhance the high gloss, marble surface density increases, the polishing agent (NO2 + Q5 mirror repair agent) and lay a solid foundation, and enhance the adhesion of the polishing material.
4, polishing: polishing the stone must be thoroughly dry, (dry method: using a mobile oven drying, dryer power of 4800 watts is the most suitable.) Machine using the power of 2HP crystal surface above (1500 - 1800 watts), speed of 175 --- 210 r / min, weight 45-70 kg of crystal surface plane, the use of animal hair content of 70% of the animal hair mats, 3M pads, nano-mats, etc. can be used, with marble and mirror re-Cream NO2, 2X Mirror lock into milk Q5 light for polishing and grinding, polishing marble, at least up to the surface gloss, 90-100 degrees.
5, encountered more difficult to do translucent stone, such as jazz white, resin artificial stone, jade, if the method is still done enough in the Shui-liang, then spray once again with the 3000 # A2 ground to dry, then continue to dry until it has come to light, and then repeat with the nano-pad, with marble and mirror re-Cream NO2, 2X mirror lock into milk Q5 light for polishing and grinding, the formation of nano-crystalline inorganic polymer copolymer layer, a glassy-like, Shui-liang's effect on definitely out. Has a high hardness, abrasion resistance, transparency, anti-fouling, anti-slip and so on.

Varieties of China marble color

Fangshan White Marble
Produced in Fangshan, Beijing Fangshan marble, jade was white, slightly gray veins of miscellaneous points and lines.
Snow White made
China-made products from Shandong Yexian snow white, the color is light gray, white ribbon with fine lines, even in the crystalline particles as particles, but the board has more yellow noise.
Crystal White Domestic
Crystal origin Sichuan, Hubei, Yunnan, was crystal-like white, sometimes slightly darker color, partial light gray color, large crystalline particles of uniform particles, but different areas of crystal white particles mine quite different, and some 2-3 mm in diameter , some up to 5-6 mm.
Grey Cloud Marble
Cloud gray marble produced in Dali, Yunnan, uniform particles to fine particles, color is white background, some will end partial light gray, or cloudy with smoke-like pattern with black and gray.
Ai Ye
Ai Yeh produced Beijing Fangshan, mainly schungite gray background are also some end, with leaf-shaped stripes pattern between sheet thread.
Laiyang Black
Laiyang Laiyang also called black ink, produced in Shandong Laiyang, small uniform particles, color is black and gray background, with black stripes and gray between the spots.
Laiyang Green
Green produced Laiyang Laiyang, mainly white-gray background color or light green background with dark green or grass green stripes and spots.
Moyu
Black jade is pure black marble, fine and uniform particles, producing a wider, Guizhou, Guangxi, Hubei, Hebei has produced, but due to limited blocks are generally processed into 60X60cm specification plate.
Red sunset
Sunset red produced in Henan Province, the main color of sunset orange or red, with black veins or stripes stacked.
M Topaz
Rice produced in topaz Nanyang, Henan, yellow, light yellow background, grainy texture, jade texture, high gloss, crystalline particles, the composition was cross-shaped teeth.
Guang Yellow marble
Huang produced in Jiangsu Province, Guangzhou, fine uniform grain, yellow or yellow background, with yellowish brown or yellow markings, the board or the fracture line over the red, a small black line, is inevitable.
Guang Red Marble
Canton also produced in red marble, Jiangsu Province, fine uniform grain, red or red and white background, with red markings, the board over the crack line, the main fracture line is red, small black crystal gray line.
Coffee Marble
Coffee production is of Jiangsu Yixing, uniform fine particles, color is dark brown background, with rhyolite-like texture, some with a white blaze.
Red Cream
Red cream produced in Yixing, Jiangsu, uniform fine particles, color is dark creamy white background with red markings, dark gray all over the plate surface cracks and crack lines.
Green cream
Green cream produced in Yixing, Jiangsu, uniform fine particles, the board is dark creamy white background, with gray markings, blue or gray and blue all over the crack or fracture line.
Green Red Cream
Green and red cream produced in Yixing, Jiangsu same, uniform fine particles, the dark creamy white background, between gray or light red stripes, blue or gray and blue all over the crack or fracture line, a few red bars.
Hang Grey Marble
Ash produced in Hangzhou, Zhejiang Province, fine uniform particles, the board is dark brown gray \ black and gray background with dark gray spots, fine lines of white clouds, while red or white with a thick bar.
Jin Xiang Yu
Jin Xiang Yu produced in Jiangsu Province, for the fine uniform particles, brown background, around the small bar, mostly white, there are khaki, and white or red with a thick bar.
Lotus Green
Lotus Green produced in Hubei, Tongzhou, partial white yellow background, with a dense pattern of green fish net.

Stone color you can think of radioactive?

On the stone of radioactive pollution of the indoor environment has been the subject of attention, causing widespread social concern. National Building Materials Bureau of Supervision and Inspection Center of radioactive as a national building materials industry experts said the only specialized supervision and inspection of radioactive materials in the relevant units to take advantage of this newspaper on issues related to radioactive stone to express their views, so that the consumers of radioactivity of the stone issue a more comprehensive and correct understanding.
Presence of radioactivity in the universality of nature
Radioactivity on the earth before the birth of early humans, that the phenomenon of human beings is an environment with a proliferation of radioactive dozens of years. Almost all substances on earth contain radioactive elements, including our humanity itself. Taken from natural stone, containing radioactive material is yes, normal.
Level radioactive stone building materials with the other roughly equal levels of radioactivity
Building we live, living, office space for almost all building materials, building materials taken from natural materials, stone ore from the mine, its essence is the same. Overall, the level of building materials is a low dose of radioactive radiation, can not and must not be very rapid (short term) lead to deterministic effects. Some newspapers reported that due to the establishment of "Cuckoo Green" granite, which led to such and such a sterile, or for stone occurrence of radioactive lead to various types of cancer. This argument is based on the lack of theory and practice.
Stone radiation effects on human health to what extent
Low doses of radiation, the professionals have different views, both sides lack the necessary clinical data on the epidemiological investigation. But one thing is certain, that is, for the high-dose radiation exposure, will certainly cause deterministic effects to human health hazards, and for building materials, stone production of low-dose irradiation, there may be cancer, the probability of cancer with the dose the increase of, typically a few parts per million. This risk is no less than by car, train, construction, mining and other industries with high risk. Standard classification of stone not harmful or harmless to the boundary, it needs to do analysis of benefits and costs, but also a practice that is when the human benefits than costs, then this practice is justified.
The seriousness of the implementation of standards
Discrimination is a stone of the radioactive matter highly professional, do not have the professional knowledge is hard to understand, especially in recent years a number of ambiguous statements, gives rise to fear of speech, has caused panic in the people on the consumption of stone , for which we are very worried. Of course, is not to say: Since the radiological prevalence of harmful levels of non-accurate quantitative conclusions, but also about the problem of radioactive stone Why? This idea is not correct. National compulsory standard JC518-93 with regulatory nature, must be implemented in. But has issued a few years, as stone production enterprise managers should be given high priority.
Radioactivity to determine the color of stone is not scientific
According to our monitoring of the national random sample of stone and commissioned radioactive sample test results show that the color of the stone can not be used as a basis to determine radioactive stone. Radioactive red stone with high and low, red azalea, South Africa, red, Indian red and so high, some B, C class. And a lot of red stone, such as the mountains of red, red is A Luoyuan products. The same species of stone is also due to different radioactive. Because of different origin, such as Red Azalea, and some products for the C, and some was A class. The green stone is true, we now detect a "cuckoo green" is the highest concentrations of radioactive materials of stone products, it is not red, but green.
However, most of the green stone is relatively low radioactivity. Such as Lotus green, malachite green and so on. The stone with flowers, high and low, it is difficult to distinguish. Black, white, relatively low, but not enough to measure the number of samples excluded the possibility of their existence high radioactivity. In short, from the color of the stone is not radioactive, which may have to through the measurement certification inspection organization authorized unit of data prevail.