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

Blue Calcite

Calcium Carbonate (CaCO3)

Hardness of 3 on the Mohs scale, pale blue to soft sky-blue color, vitreous to pearly luster, trigonal crystal system, perfect rhombohedral cleavage, specific gravity of 2.71.

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Physical properties

Hardness of 3 on the Mohs scale, pale blue to soft sky-blue color, vitreous to pearly luster, trigonal crystal system, perfect rhombohedral cleavage, specific gravity of 2.71.

Formation & geological history

Forms in sedimentary environments through the precipitation of calcium carbonate from marine waters, as well as in hydrothermal veins and evaporite deposits.

Uses & applications

Commonly used in holistic crystal healing, decorative carvings, lapidary art, and mineral collections.

Geological facts

Blue calcite is known for its gentle, soothing energy and is often used in meditation to calm the mind and facilitate emotional release.

Field identification & locations

Identified easily by its characteristic soft blue color, relative softness (can be scratched easily with a copper coin), and strong effervescence when exposed to dilute hydrochloric acid.