mineral
Citrine
Silicon Dioxide, SiO2 (Quartz variety)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, trigonal crystal system, conchoidal fracture with no cleavage.
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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 with no cleavage.
Formation & geological history
Formed in igneous, metamorphic, and sedimentary environments, often through the natural heat-treatment of smoky quartz or amethyst.
Uses & applications
Widely used as a gemstone in jewelry, decorative carvings, and valued by crystal collectors.
Geological facts
Natural citrine is relatively rare; most commercial citrine is produced by heating amethyst or smoky quartz.
Field identification & locations
Identified by its distinct yellow color and quartz hardness, commonly sourced from Brazil, Madagascar, and the USA.
