gemstone
Citrine
Quartz (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vibrant yellow to brownish-orange color, vitreous luster, trigonal crystal system, and conchoidal fracture with no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, vibrant yellow to brownish-orange color, vitreous luster, trigonal crystal system, and conchoidal fracture with no cleavage.
Formation & geological history
Formed naturally through the low-temperature hydrothermal alteration or heat-treatment of iron-rich amethyst crystals in volcanic and metamorphic rocks.
Uses & applications
Widely used in fine jewelry production, ornamental carvings, and as a popular collectible specimen in the mineral market.
Geological facts
Natural citrine is quite rare; most commercial citrine on the market is actually heat-treated amethyst or smoky quartz.
Field identification & locations
Easily identified by its distinct yellow color and lack of cleavage; found globally with notable deposits in Brazil, Madagascar, and Russia.
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