mineral
Citrine
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to orange-brown color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms in hydrothermal veins or through the natural heat-induced irradiation of amethyst, found globally in pegmatites and metamorphic rocks.
Uses & applications
Extensively used in jewelry making, ornamental carvings, and as a popular collector 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 distinctive yellow color and lack of cleavage; commonly sourced from Brazil, Madagascar, and the USA.
