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

Calcite

Calcium Carbonate (CaCO3)

AI-generated identification · may be incorrect

Hardness of 3 on the Mohs scale, typically white or transparent with a vitreous to earthy luster, and exhibits rhombohedral cleavage.

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Physical properties

Hardness of 3 on the Mohs scale, typically white or transparent with a vitreous to earthy luster, and exhibits rhombohedral cleavage.

Formation & geological history

Formed through the precipitation of calcium carbonate from marine environments, hydrothermal veins, or cave systems.

Uses & applications

Used widely in construction, manufacturing of cement, agriculture for soil pH neutralization, and optical components.

Geological facts

Calcite is the primary constituent of limestone and marble, and it exhibits strong optical birefringence.

Field identification & locations

Easily identified in the field by its characteristic rhombohedral cleavage and strong effervescence when exposed to dilute hydrochloric acid.