mineral
Citrine
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, yellow to brownish-orange color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, yellow to brownish-orange color, vitreous luster, hexagonal crystal system, and conchoidal fracture with no cleavage.
Formation & geological history
Forms naturally through the hydrothermal metamorphism of low-grade amethyst or volcanic rock cooling, though much commercial citrine is heat-treated amethyst.
Uses & applications
Widely used as a popular gemstone in jewelry, rings, and pendants, as well as in decorative carvings and crystal healing.
Geological facts
Natural citrine is relatively rare compared to heat-treated amethyst, and its yellow color is caused by trace amounts of iron impurities.
Field identification & locations
Identified by its distinctive yellow-to-orange hue and lack of cleavage; commonly found in Brazil, Madagascar, and Bolivia.
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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