mineral
Orange Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectMohs hardness of 3, orange to yellow 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, orange to yellow color, vitreous to pearly luster, trigonal crystal system, perfect rhombohedral cleavage, specific gravity of 2.71.
Formation & geological history
Formed through precipitation from calcium-rich aqueous solutions in sedimentary environments, hydrothermal veins, and cavern deposits.
Uses & applications
Used in optical devices, construction materials, lime production, and as a popular decorative or metaphysical specimen for collectors.
Geological facts
Calcite exhibits strong double refraction (birefringence), splitting light into two separate rays when viewed through clear specimens.
Field identification & locations
Identified by its distinctive rhombohedral cleavage and immediate effervescence when tested with dilute hydrochloric acid. Commonly sourced worldwide, notably in Mexico.
