mineral
Citrine Quartz carving
Silicon Dioxide (SiO2)
Hardness: 7 on Mohs scale; Color: Yellow to golden orange; Luster: Vitreous (glassy); Crystal system: Trigonal; Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Yellow to golden orange
- Luster
- Vitreous (glassy)
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Physical properties
Hardness: 7 on Mohs scale; Color: Yellow to golden orange; Luster: Vitreous (glassy); Crystal system: Trigonal; Gravity: 2.65
Formation & geological history
Citrine is a variety of quartz that occurs naturally rarely in igneous and metamorphic rocks, though most commercial citrine is heat-treated amethyst.
Uses & applications
This specimen is carved for spiritual, religious, or decorative jewelry purposes, specifically depicting a Buddhist deity (Guanyin).
Geological facts
Natural citrine is quite rare; the golden-yellow color is caused by submicroscopic distribution of colloidal iron hydroxide impurities.
Field identification & locations
Identify by its hexagonal crystal structure (if raw) and lack of cleavage. In commercial settings like this, it is often heat-treated to enhance color.
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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
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock