mineral
Honey calcite crystal cluster
Calcite (CaCO₃)
AI-generated identification · may be incorrectTranslucent cream-to-honey-colored crystals on a pale matrix; vitreous to pearly luster and prominent rhombohedral cleavage. Mohs hardness 3; trigonal crystal system; specific gravity about 2.7. The exact identification is uncertain from the image alone.
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Physical properties
Translucent cream-to-honey-colored crystals on a pale matrix; vitreous to pearly luster and prominent rhombohedral cleavage. Mohs hardness 3; trigonal crystal system; specific gravity about 2.7. The exact identification is uncertain from the image alone.
Formation & geological history
Calcite commonly precipitates from mineral-rich groundwater in cavities and veins, or forms in limestone. Such deposits range from geologically recent to hundreds of millions of years old; the specimen’s age and locality cannot be determined visually.
Uses & applications
Collected as a decorative mineral specimen; calcite is also used to make cement and lime, as an industrial filler, and in optical instruments.
Geological facts
Calcite effervesces in dilute acid and shows strong double refraction in clear crystals.
Field identification & locations
Look for soft, easily scratched crystals and rhombohedral cleavage; calcite is widespread in limestone regions and hydrothermal veins. The amber color may result from iron staining.
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