Citrine Quartz

Physical Properties

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

Formation & Geological History

Formed in igneous or metamorphic environments when amethyst or smoky quartz is naturally heated by nearby geothermal activity. Natural citrine is rare; many commercial pieces are heat-treated amethyst.

Uses & Applications

Popular in jewelry (faceted gemstones), metaphysical healing practices, and as a decorative mineral for collectors.

Geological Facts

Natural citrine is often called the 'Merchant's Stone' as it was historically believed to attract wealth. Most 'citrine' sold today is actually heat-treated amethyst, which usually has a more intense orange or reddish-burnt hue compared to the pale yellow of natural citrine.

Field Identification & Locations

Identify by its hardness (will scratch glass) and lack of cleavage. Found globally in Brazil, Madagascar, and Russia. Natural crystals are usually pale yellow rather than deep orange.

Identified on: 5/8/2026

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