Calcite is a kind of calcium carbonate mineral the main ingredient is CaCO3, normally colorless or white, sometimes variegated. The theoretical chemical constitution is: CaO:56.03%, CO2: 43.97%, usually contains isomorph like MgO, FeO, MnO, etc. Mohs hardness 3, density 2.6-2.94, with glassy luster. In China, calcite is found in Guangxi, Jiangxi, Hunan area. Guangxi calcite is famous for high whiteness and low acid non-soluble substance. Calcite is also found in North and North-east China, but usually accompanied with dolomite, the whiteness generally under 94, with high rate of acid non-soluble substance.
Usage of Calcite
1.Under 200 mesh: used in feed supplement, calcium content more than 55.6%, without harmful component.
2.250-300 mesh: used as the raw material of plastic plant, rubber plant, coating plant, waterproof material plant, and can be also used for wall painting. Whiteness is higher than 85 degree.
3.350-400 mesh: used to produce buckle, pipe, and applied in chemical industry. Whiteness above 93 degree.
4.400-600 mesh: used to produce toothpaste and soap. Whiteness over 94 degree.
5.Over 800 mesh: used to produce rubber, plastic, cable and PVC. Whiteness over 94 degree. 6.Over 1250 mesh: applied in PVC, PE, paint, coating level production, paper making first coat and top coat with whiteness higher than 95 degree. Have the advantages of high purity, high whiteness, non-poisonous, odorless, low thin oiliness, low hardness.
Calcite Grinding Mill Stone has been widely used in making fine powder or micro powder, which is applicable to non-flammable and non-explosive materials with hardness less than 6, such as the calcite, chalk, limestone, dolomite, kaolin, bentonite, talcum, talc, diatomite, barite, gypsum, alum earth, graphite, fluorite, etc.
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