mineral
Citrine
Silicon dioxide (Quartz), SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, pale yellow to brownish-orange color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, and specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, pale yellow to brownish-orange color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, and specific gravity of 2.65.
Formation & geological history
Forms naturally via the hydrothermal crystallization of silica-rich solutions or through the thermal alteration (heat treatment) of purple amethyst.
Uses & applications
Widely used in jewelry-making, decorative carvings, and as a popular crystal for metaphysical collecting and home decor.
Geological facts
Natural citrine is quite rare in the gem market; the vast majority available commercially is produced by heat-treating lower-grade amethyst or smoky quartz.
Field identification & locations
Identified by its signature yellow to orange coloration and characteristic quartz hardness, commonly sourced from Brazil, Madagascar, and Russia.
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Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
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Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
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Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
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Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
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