mineral
Citrine
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness (Mohs scale): 7. Color: yellow to reddish-orange. Luster: vitreous. Crystal structure: trigonal/hexagonal. Cleavage: none. Specific gravity: 2.65.
- Color
- yellow to reddish-orange
- Luster
- vitreous
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Physical properties
Hardness (Mohs scale): 7. Color: yellow to reddish-orange. Luster: vitreous. Crystal structure: trigonal/hexagonal. Cleavage: none. Specific gravity: 2.65.
Formation & geological history
Forms in igneous rocks (granite pegmatites) and metamorphic rocks. Natural citrine is rare; many specimens are heat-treated amethyst or smoky quartz.
Uses & applications
Primarily used in jewelry (faceting, cabochons), carvings, and as a popular gemstone for collectors.
Geological facts
Citrine is known as the 'Success Stone' or 'Merchant's Stone' in crystal healing. Natural citrine can be distinguished from heat-treated versions by its lack of reddish tints and uniform color.
Field identification & locations
Identify in the field by its hardness (scratches glass) and color. Commonly found in Brazil, Madagascar, and Russia. Look for clarity and internal fractures known as 'rainbows' in tumbled stones.
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