mineral

Citrine Geode Fragment

Silicon Dioxide (SiO2) with iron impurities

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Yellow, brownish-orange, or amber; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

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

Identified July 17, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Yellow, brownish-orange, or amber; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Formation & geological history

Formed in volcanic cavities or sedimentary geodes where silica-rich fluids crystallized. Much commercial citrine is produced by heat-treating amethyst or smoky quartz to alter its oxidation state.

Uses & applications

Primarily used in jewelry, as a healing crystal in metaphysical practices, and as a decorative display mineral for collectors.

Geological facts

Citrine is known as the 'Success Stone' or 'Merchant's Stone' in folklore. Natural citrine is actually quite rare compared to heat-treated varieties, which often have a more reddish or opaque white base than natural specimens.

Field identification & locations

Identify by its hexagonal crystal points, yellow to orange hue, and lack of visible cleavage. In the field, look for quartz geodes in basaltic or sedimentary regions. Common locations include Brazil, Madagascar, and Russia.