mineral
Citrine
Silicon Dioxide (Quartz var. citrine), SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to brownish-orange 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 brownish-orange color, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed through the hydrothermal crystallization of silica-rich solutions or the low-temperature thermal alteration of amethyst, often found in igneous and metamorphic rocks.
Uses & applications
Widely used in fine jewelry, metaphysical practices, and as a popular collector's mineral specimen.
Geological facts
Natural citrine is relatively rare; most commercial citrine is produced by heat-treating purple amethyst or smoky quartz.
Field identification & locations
Identified by its distinct yellow-to-orange color and lack of cleavage; commonly sourced from Brazil, Madagascar, and the USA.
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