mineral

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Yellow to brownish-orange; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Yellow to brownish-orange
Luster: Vitreous (glassy)

Identified May 2, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Yellow to brownish-orange; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed in igneous and metamorphic rocks, particularly pegmatites and hydrothermal veins. Natural citrine is rare and often forms when amethyst or smoky quartz is naturally heated by nearby geothermal activity.

Uses & applications

Primarily used in jewelry as a gemstone, as well as in metaphysical collecting and high-end ornamental carvings.

Geological facts

Citrine is known as the 'Success Stone' or 'Merchant's Stone' in folklore. Most citrine on the market is actually heat-treated amethyst or smoky quartz, which can be distinguished by its reddish tint and opaque white base.

Field identification & locations

Identify in the field by its hardness (will scratch glass) and lack of cleavage. Look for transparent to translucent yellow crystals in quartz veins. Common locations include Brazil, Madagascar, and Russia.