mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and through the thermal alteration of amethyst, often found in metamorphic or igneous settings.
Uses & applications
Widely used in jewelry, ornamental carvings, and as a popular collectible gemstone.
Geological facts
Natural citrine is relatively rare compared to heat-treated amethyst, which is commonly sold as citrine in the commercial market.
Field identification & locations
Identify by its distinct yellow-to-orange hue and lack of cleavage; commonly sourced from Brazil, Madagascar, and Russia.
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sedimentary
Tumbled granite
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Epidote
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metamorphic