mineral
Citrine Quartz
Silicon dioxide (SiO2)
Hardness: 7 (Mohs scale), Color: pale yellow to brownish-orange, Luster: Vitreous, Crystal Structure: Trigonal/Hexagonal, Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: pale yellow to brownish-orange, Luster: Vitreous, Crystal Structure: Trigonal/Hexagonal, Specific Gravity: 2.65
Formation & geological history
Citrine is a variety of quartz that develops in igneous and metamorphic rocks. Most commercial citrine is produced by heat-treating amethyst or smoky quartz to alter its oxidation state of iron impurities.
Uses & applications
Primarily used as a gemstone in jewelry (rings, pendants) and as a healing crystal in metaphysical practices.
Geological facts
Citrine is known as the 'Merchant's Stone' or 'Success Stone' due to its long history associated with wealth and prosperity. It is one of the November birthstones.
Field identification & locations
Identify by its glassy luster and lack of cleavage. In the field, look for hexagonal prisms. Natural citrine is rare and typically found in Brazil, Madagascar, and Russia.
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Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Schist
Schist
Metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Nephrite Jade
Nephrite
Mineral/Rock