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Chemical Composition: CaCO3
Group: Calcite
System: Hexagonal
Family: Carbonates
Hardness: 3
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- Rhombohedral, scalenohedral or prismatic crystals
- Other colours: colourless, white, pink, green,
yellow
- Light
- Transparent
- Soluble in cold, dilute HCl
- Infusible, but dissociates at a high temperature
- Calcite is chalk
- Compact masses are used in building, metallurgy, the
manufacture of fertilizers, chemical industry
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