mineral
Blue Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectMohs hardness of 3; pale blue color; vitreous to pearly luster; trigonal crystal system; perfect rhombohedral cleavage; specific gravity of 2.71.
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Physical properties
Mohs hardness of 3; pale blue color; vitreous to pearly luster; trigonal crystal system; perfect rhombohedral cleavage; specific gravity of 2.71.
Formation & geological history
Formed in sedimentary environments through the precipitation of calcium carbonate from marine waters or hydrothermal veins.
Uses & applications
Used in decorative carvings, crystal healing collections, and as an optical or industrial mineral source.
Geological facts
Calcite exhibits strong birefringence, doubling any image viewed through clear specimens. It effervesces in weak hydrochloric acid.
Field identification & locations
Easily identified by its soft 3 hardness, rhombohedral cleavage, and acid reactivity. Major deposits occur globally, notably in Madagascar and Mexico.
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