mineral
Honey calcite (rough calcite specimen)
Calcite, calcium carbonate (CaCO₃)
AI-generated identification · may be incorrectPale honey to peach-colored, translucent, with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.71. The irregular blocky surfaces and internal cleavage are consistent with calcite, though the image alone cannot exclude pale dolomite or quartz-rich material.
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Physical properties
Pale honey to peach-colored, translucent, with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.71. The irregular blocky surfaces and internal cleavage are consistent with calcite, though the image alone cannot exclude pale dolomite or quartz-rich material.
Formation & geological history
Forms in limestone, hydrothermal veins, caves, and evaporite-related settings through precipitation from calcium-rich fluids; specimens may range from Precambrian to modern. The color commonly results from iron or other trace impurities.
Uses & applications
Used industrially in cement, lime, aggregate, soil treatment, and chemical manufacture; clear crystals are collected and occasionally fashioned as decorative objects, but this rough piece is not typically jewelry-grade.
Geological facts
Calcite strongly effervesces with dilute hydrochloric acid or vinegar after scratching a fresh surface, whereas quartz does not. It shows excellent rhombohedral cleavage and can display double refraction through clear areas.
Field identification & locations
Common worldwide, especially in limestone regions, hydrothermal deposits, and caves; test cautiously with vinegar, inspect cleavage, and avoid mistaking it for quartz or dolomite. Likely locations include Mexico, the United States, Brazil, and China.
