mineral
Honey-colored calcite
Calcite (calcium carbonate, CaCO₃), likely rough or partly polished
AI-generated identification · may be incorrectTypically honey-yellow to amber, translucent, with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.71. The irregular piece appears massive and may show cleavage surfaces.
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Physical properties
Typically honey-yellow to amber, translucent, with vitreous to pearly luster and prominent rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.71. The irregular piece appears massive and may show cleavage surfaces.
Formation & geological history
Forms when calcium-rich groundwater precipitates carbonate in veins, cavities, caves, and sedimentary rocks; the yellow color commonly comes from iron-oxide inclusions. Calcite occurs from Precambrian to modern settings.
Uses & applications
Used for cement, lime, aggregate, chemical manufacture, and occasionally ornamental carving or mineral collecting; transparent honey calcite can be decorative but is generally not jewelry-durable.
Geological facts
Calcite effervesces strongly in cold dilute hydrochloric acid and exhibits double refraction in clear pieces. It is one of Earth’s most abundant carbonate minerals.
Field identification & locations
Common worldwide, including Mexico, the United States, Iceland, and China. Confirm with a hardness test against a copper coin or steel, cleavage, and acid reaction; appearance alone cannot exclude amber, resin, or other yellow minerals.
