mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale), Color: Yellow to brownish-orange, Luster: Vitreous, Crystal Structure: Hexagonal (Trigonal), Cleavage: None (Conchoidal fracture), Specific Gravity: 2.65

Identified March 26, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale), Color: Yellow to brownish-orange, Luster: Vitreous, Crystal Structure: Hexagonal (Trigonal), Cleavage: None (Conchoidal fracture), Specific Gravity: 2.65

Formation & geological history

Formed in igneous and metamorphic rocks, primarily in geodes, volcanic vugs, and hydrothermal veins. Natural citrine occurs through the internal heating of Amethyst or Smoky Quartz over geological timescales, though much commercial material is heat-treated in labs.

Uses & applications

Widely used in the jewelry industry as a semi-precious gemstone, in crystal healing practices, and as decorative mineral specimens for collectors.

Geological facts

Natural citrine is quite rare; most 'citrine' on the market is actually heat-treated amethyst. It is known as the 'Success Stone' or 'Merchant's Stone' in folklore.

Field identification & locations

Identify in the field by its distinct yellow hue and lack of cleavage. Common locations include Brazil, Madagascar, and Russia. Collectors should look for uniform color and transparency.