mineral

Yellow Quartz

SiO2 (Silicon Dioxide)

Hardness: 7 on Mohs scale; Color: Pale yellow to honey gold; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Hardness: 7 on Mohs scale
Color: Pale yellow to honey gold
Luster: Vitreous to waxy

Identified June 6, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Pale yellow to honey gold; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Formation & geological history

Formed through the crystallization of silica-rich hydrothermal fluids in veins or pegmatites, or as a secondary mineral in sedimentary environments where quartz is tumbled and stained by iron oxides.

Uses & applications

Commonly used in tumbled stone jewelry, decorative carvings, and as a popular metaphysical or spiritual gemstone for collectors.

Geological facts

Yellow quartz is often confused with Citrine, but natural Citrine is rarer; many yellow quartz specimens are actually milky quartz that has been naturally or artificially stained or heat-treated.

Field identification & locations

Identify in the field by its hardness (it will scratch glass), its conchoidal (shell-like) fracture, and lack of cleavage. It is found globally, with significant deposits in Brazil, Madagascar, and the USA.