mineral
Calcite (honey calcite)
Calcite, calcium carbonate (CaCO₃)
AI-generated identification · may be incorrectPale honey to cream, translucent, with a vitreous-to-pearly luster and visible cleavage faces. Mohs hardness 3; trigonal crystal system; rhombohedral cleavage in three directions; specific gravity about 2.71.
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Physical properties
Pale honey to cream, translucent, with a vitreous-to-pearly luster and visible cleavage faces. Mohs hardness 3; trigonal crystal system; rhombohedral cleavage in three directions; specific gravity about 2.71.
Formation & geological history
Likely a natural calcite crystal or massive calcite piece formed from mineral-rich fluids in veins or cavities, or precipitated in sedimentary settings. Calcite occurs in rocks of many ages; the specimen’s age and exact origin cannot be determined from the image.
Uses & applications
Used in cement and lime production, soil treatment, and as a decorative or educational specimen; clear, attractive pieces may be cut or collected.
Geological facts
Calcite effervesces in dilute hydrochloric acid and can show double refraction in transparent pieces.
Field identification & locations
The pale color, glassy sparkle, and apparent cleavage are consistent with calcite; confirm with a scratch test against a copper coin and an acid test on an inconspicuous spot. Common worldwide in limestone, marble, and hydrothermal veins.
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