mineral
Blue Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectMohs hardness of 3, light blue to grayish-blue color, vitreous to pearly luster, rhombohedral crystal system, and perfect cleavage in three directions.
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Physical properties
Mohs hardness of 3, light blue to grayish-blue color, vitreous to pearly luster, rhombohedral crystal system, and perfect cleavage in three directions.
Formation & geological history
Formed via low-temperature hydrothermal veins, sedimentary precipitation, or metamorphic processes in diverse global geological settings.
Uses & applications
Used primarily in decorative items, holistic crystal collections, and minor ornamental carvings due to its softness.
Geological facts
Blue calcite often exhibits strong white fluorescence under shortwave ultraviolet light and reacts with dilute hydrochloric acid.
Field identification & locations
Easily identified by its distinctive softness and vigorous effervescence with acid; commonly sourced from Madagascar and Mexico.
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