mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: Pale yellow to golden honey or amber brown, Luster: Vitreous (glassy), Crystal Structure: Hexagonal (Trigonal), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: Pale yellow to golden honey or amber brown, Luster: Vitreous (glassy), Crystal Structure: Hexagonal (Trigonal), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.65
Formation & geological history
Formed in igneous and metamorphic environments, specifically in pegmatites and hydrothermal veins. Natural citrine occurs when quartz crystals are subjected to intense heat and pressure underground, often near iron-rich deposits.
Uses & applications
Predominantly used as a gemstone in jewelry, for decorative carvings, and as a popular specimen for gemstone collectors and metaphysical enthusiasts.
Geological facts
Natural citrine is quite rare; most 'citrine' in the commercial market is actually heat-treated amethyst or smoky quartz. It is known as the 'Success Stone' or 'Merchant's Stone' in history.
Field identification & locations
Identify by its clarity, yellow-to-orange hue, and lack of cleavage. In the field, look for hexagonal prismatic crystals that are harder than glass. Common natural sources include Brazil, Madagascar, and Russia.
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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
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous