mineral
Citrine
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, trigonal crystal system, and no distinct cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, trigonal crystal system, and no distinct cleavage.
Formation & geological history
Forms hydrothermally in igneous rocks like granite or through the low-temperature thermal metamorphism of amethyst.
Uses & applications
Widely used as a gemstone in jewelry, for decorative carvings, and collected as a mineral specimen.
Geological facts
Natural citrine is relatively rare, and much of the commercial citrine available today is actually heat-treated amethyst or smoky quartz.
Field identification & locations
Identified by its distinctive yellow color and conchoidal fracture; commonly sourced from Brazil, Madagascar, and the USA.
