mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on Mohs scale, yellow to golden color, vitreous to earthy luster, trigonal crystal system, and perfect rhombohedral cleavage.
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Physical properties
Hardness of 3 on Mohs scale, yellow to golden color, vitreous to earthy luster, trigonal crystal system, and perfect rhombohedral cleavage.
Formation & geological history
Forms primarily in sedimentary environments through precipitation from calcium-rich water, as well as in hydrothermal veins and hot springs.
Uses & applications
Used in optical devices, manufacturing of lime and cement, soil conditioning, and as a popular decorative or metaphysical specimen for collectors.
Geological facts
Calcite exhibits strong double refraction, meaning light splits into two rays when passing through transparent crystals. It is the primary component of limestone and marble.
Field identification & locations
Identified easily by its soft Mohs hardness of 3 and a strong fizz reaction when tested with dilute hydrochloric acid. Found globally with major deposits in Mexico and the USA.
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