mineral
Honey calcite (rough crystal fragment)
Calcite, CaCO₃
AI-generated identification · may be incorrectTranslucent golden-brown with a vitreous to pearly luster and prominent cleavage; calcite is trigonal, Mohs hardness 3, and specific gravity about 2.7. The photo alone cannot confirm the identification; similar-looking minerals include citrine and gypsum.
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Physical properties
Translucent golden-brown with a vitreous to pearly luster and prominent cleavage; calcite is trigonal, Mohs hardness 3, and specific gravity about 2.7. The photo alone cannot confirm the identification; similar-looking minerals include citrine and gypsum.
Formation & geological history
Forms in limestone and marble, hydrothermal veins, and cavities from calcium-carbonate-rich fluids; calcite occurs in rocks of many geological ages.
Uses & applications
Collected as a mineral specimen and used in cement, lime, and construction materials; clear calcite is also used in optical applications.
Geological facts
Calcite effervesces in dilute hydrochloric acid and can show double refraction in transparent crystals.
Field identification & locations
Check for rhombohedral cleavage, softness, and acid reaction; common worldwide in sedimentary and hydrothermal settings. A definitive ID may require testing.
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