mineral
Citrine
Silicon Dioxide, SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to orange 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 color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms naturally in hydrothermal veins and pegmatites through the irradiation of smoky quartz or thermal alteration of amethyst.
Uses & applications
Widely used as a popular gemstone in jewelry and valued as a decorative collector mineral.
Geological facts
Natural citrine is relatively rare, with the vast majority of commercial citrine being heat-treated amethyst or smoky quartz.
Field identification & locations
Identified by its distinctive yellow-orange color and lack of cleavage, commonly found in Brazil, Madagascar, and Russia.
