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

Calcite

Calcium Carbonate (CaCO3)

AI-generated identification · may be incorrect

Mohs hardness of 3, white or colorless, vitreous to earthy luster, rhombohedral cleavage, and specific gravity of 2.71.

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Physical properties

Mohs hardness of 3, white or colorless, vitreous to earthy luster, rhombohedral cleavage, and specific gravity of 2.71.

Formation & geological history

Formed through precipitation in aqueous environments, hydrothermal veins, or sedimentary settings like limestone caves.

Uses & applications

Used widely in construction materials, cement production, agriculture, and optical devices.

Geological facts

Calcite exhibits strong double refraction and effervesces vigorously when exposed to dilute hydrochloric acid.

Field identification & locations

Easily identified by its characteristic rhombohedral cleavage and soft hardness; found globally in sedimentary rock formations.