mineral
Honey calcite on matrix
Calcite, CaCO₃
AI-generated identification · may be incorrectHoney-yellow, translucent crystals with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, trigonal crystal system, specific gravity about 2.7. The pale matrix appears to be another mineral, possibly dolomite or quartz.
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Physical properties
Honey-yellow, translucent crystals with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, trigonal crystal system, specific gravity about 2.7. The pale matrix appears to be another mineral, possibly dolomite or quartz.
Formation & geological history
Calcite commonly precipitates from mineral-rich groundwater or hydrothermal fluids in cavities and veins, often alongside other minerals. Its age and exact formation environment cannot be determined from the image.
Uses & applications
Collected as a display specimen; calcite is also used in cement and lime production, construction aggregate, and as a chemical feedstock.
Geological facts
Calcite fizzes in dilute hydrochloric acid and can show double refraction in clear crystals. Yellow coloration usually comes from trace impurities.
Field identification & locations
Look for the honey-colored, glassy crystals and rhombohedral cleavage; calcite is widespread in sedimentary and hydrothermal deposits worldwide. Avoid scratching it with hard tools because it is relatively soft.
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