mineral
Citrine
Silicon Dioxide (Quartz), SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to brownish-orange color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to brownish-orange color, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms hydrothermally in pegmatites and igneous rocks, or through the natural or heat-treated iron-irradiation of smoky quartz or amethyst.
Uses & applications
Widely used in fine jewelry, decorative carvings, and as a popular collectible specimen or metaphysical healing stone.
Geological facts
Natural citrine is relatively rare, with most commercial citrine being heat-treated amethyst. Its distinct yellow color is caused by trace amounts of iron impurities.
Field identification & locations
Identified by its yellow color, high hardness, and lack of cleavage. Commonly sourced from Brazil, Madagascar, and the United States.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous