The Introduction of China Black Granite

China black granite stone is the most famous production in Hebei province, as well as the biggest field of. Since 90’s century, it has begun to exploit, and started to export. It was named for China black. After other black stone mining exports in China, especially the ore belts of black stone, like the approximate stone from Shanxi and Fengzhen. To distinguish them, they were named after their producing area, Hebei black, Fuping black. Shanxi ore named Shanxi black, Fengzhen ore named Fengzhen black. These black ore belong to the hard, which different from the low hardness stone, like the basalt-Mongolian black, Fuding black. They has high hardness and its MaShi hardness is 7, if use the common knife, you can't draw content. The density is big(2.9-3.2). A cubic meter of net stone of the weight is about 3 tons. They will send out a similar metal voice if striking with hardness products. The structure is small with crystal, so its strength is bigger with strong natural resistance. So there is a statement that it could exist for thousand years and forever. In fact, its life span is more than that! If do mirror polishing, the luminosity could be up to 100 degrees or above. So it is also called black mirror.
According to the blackening, it was divided into three types: China Black1, China Black2, China Black3.
China Black1 can’t be mined largely, just a small amount of material, fine black, but material forming small, have off color transition. The large application black stone is China Black 2 and 3. The natural black degrees, hardness, density is better than 3. It is mined early, the mining face is to deep depth, so the exploitation is difficult and the production cost is high, the price is also far higher than 3, especially larger specifications, it is mainly used for export.

The main processing finished product of China black granite is the countertop , the floor inside and outside, metope, large shakedown stone, monument, craft stone, etc. You could log in our website ( www.stonebtb.com ) for reference.