mineral
Polished honey/orange calcite cabochon
Calcite (CaCO₃)
AI-generated identification · may be incorrectSmall polished, translucent orange-yellow piece with a vitreous to waxy luster; calcite has Mohs hardness 3, trigonal crystal structure, and perfect rhombohedral cleavage. The photo alone cannot confirm the identification; similar-looking minerals include quartz and amber.
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Physical properties
Small polished, translucent orange-yellow piece with a vitreous to waxy luster; calcite has Mohs hardness 3, trigonal crystal structure, and perfect rhombohedral cleavage. The photo alone cannot confirm the identification; similar-looking minerals include quartz and amber.
Formation & geological history
Calcite commonly forms from calcium-carbonate-rich water in sedimentary settings, veins, and cavities; it occurs in rocks of many geological ages. Orange coloration may come from trace impurities or treatment.
Uses & applications
Used as an ornamental or collectible stone and occasionally in inexpensive jewelry; calcite is also an important industrial source of lime and cement.
Geological facts
Calcite effervesces in dilute acid and shows strong double refraction in clear crystals.
Field identification & locations
Check softness, cleavage, and acid reaction on an inconspicuous spot; orange color alone is not diagnostic. Calcite is widespread worldwide, including in limestone deposits and hydrothermal veins.
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