mineral
Raw honey calcite
Calcite (calcium carbonate, CaCO₃)
AI-generated identification · may be incorrectTypically pale honey-yellow to translucent, with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, nonmetallic, and commonly shows curved or stepped cleavage surfaces. It may effervesce vigorously in dilute hydrochloric acid.
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Physical properties
Typically pale honey-yellow to translucent, with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, nonmetallic, and commonly shows curved or stepped cleavage surfaces. It may effervesce vigorously in dilute hydrochloric acid.
Formation & geological history
Forms when calcium-rich groundwater, hydrothermal fluids, or marine sediments precipitate calcium carbonate; specimens can range from modern deposits to rocks hundreds of millions of years old. Common sources include Mexico, Brazil, the United States, and China.
Uses & applications
Used industrially in cement, lime, glass, agriculture, fillers, and chemical manufacture; transparent crystals are collected and occasionally cut as ornamental material, though calcite is too soft for most jewelry.
Geological facts
The yellow color usually comes from trace iron, organic material, or other impurities rather than a separate mineral. Calcite is highly birefringent, producing a strong double-image effect through clear pieces.
Field identification & locations
Identify by its honey color, low hardness, rhombohedral cleavage, and acid reaction; distinguish it from quartz, which is harder and lacks cleavage. This appears to be a common rough collector specimen rather than gem-grade material.
