mineral
Honey calcite
Calcite (calcium carbonate, CaCO₃)
AI-generated identification · may be incorrectTypically pale yellow to honey-colored, translucent, and vitreous to pearly; Mohs hardness 3, perfect rhombohedral cleavage, trigonal crystal system, and specific gravity about 2.71. The irregular shape appears naturally broken or roughly tumbled.
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Physical properties
Typically pale yellow to honey-colored, translucent, and vitreous to pearly; Mohs hardness 3, perfect rhombohedral cleavage, trigonal crystal system, and specific gravity about 2.71. The irregular shape appears naturally broken or roughly tumbled.
Formation & geological history
Forms when calcium-rich groundwater precipitates carbonate, commonly in limestone cavities, hydrothermal veins, and sedimentary deposits. Calcite occurs from ancient to modern geological ages and is widespread worldwide.
Uses & applications
Used in cement, lime, aggregate, soil treatment, and optical/calcareous products; attractive transparent pieces are sold as inexpensive mineral specimens. It is generally not suitable for durable jewelry because it scratches easily.
Geological facts
Calcite effervesces strongly with dilute hydrochloric acid or vinegar, though vinegar may react slowly. Its rhombohedral cleavage and low hardness distinguish it from quartz, which is harder and lacks cleavage.
Field identification & locations
Common localities include Mexico, Iceland, the United States, Brazil, and China. Test cautiously with a steel edge and dilute acid; the image alone cannot exclude yellow aragonite or another pale carbonate.
