Rock Identifier
Calcite (Calcium Carbonate (CaCO3)) — mineral
mineral

Calcite

Calcium Carbonate (CaCO3)

AI-generated identification · may be incorrect

Hardness of 3 on Mohs scale, transparent to opaque with vitreous to earthy luster, rhombohedral crystal system, and perfect rhombohedral cleavage.

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Physical properties

Hardness of 3 on Mohs scale, transparent to opaque with vitreous to earthy luster, rhombohedral crystal system, and perfect rhombohedral cleavage.

Formation & geological history

Formed in sedimentary, metamorphic, and igneous environments primarily through precipitation from aqueous solutions.

Uses & applications

Used in construction materials, cement manufacturing, agriculture for soil neutralization, and optical equipment.

Geological facts

Calcite exhibits strong double refraction, splitting light passing through it into two separate rays.

Field identification & locations

Identified easily by its distinctive rhombohedral cleavage and strong effervescence when exposed to dilute hydrochloric acid; found worldwide.