Carbonate jade is composed of quartzite, calcium carbonate, magnesium ions, sodium ions and other substances. It's beautiful. It looks like Hetian jade white jade in Xinjiang, but the price is cheaper than Hetian jade in Xinjiang. The chemical composition is CaCO3 structure, and the hardness of fine granular structure is 5; White (some with red, yellow and other textures); With glass luster, it symbolizes the stone of purity.

Carbonate jade can be divided into white marble, marble, white crane jade, beeswax topaz, wood grain jade and afghanistan jade. Although they all contain carbonate like marble, the unique physical structure of carbonate jade makes it show a different luster and texture, so it has certain collection value.

Extended data

Type:

1, "white marble", white, delicate and uniform, the most famous place of origin is Zhoukoudian, Fangshan, Beijing. Sometimes used to imitate white jade. Someone dyed coarse-grained marble green to imitate jade.

2. "Marble" is produced in Dali, Yunnan Province, with gray, dark gray, dark green and brown patterns against a white background, forming the effect of China landscape painting. Its white part is calcite, while the dark pattern contains phlogopite, chlorite, amphibole, biotite and carbon.

3. "Wood grain jade", produced along the Yellow River, is a kind of wood grain dolomite. Its texture is rendered by iron. Originally used for desktop, coffee table, decorative board, etc. In recent years, it is mostly used for small items such as tea sets, wine sets and fitness balls.

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