mineral

Yellow Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Yellow to golden-brown; Luster: Vitreous (glassy); Crystal Structure: Trigonal; Cleavage: None (exhibits conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Yellow to golden-brown
Luster: Vitreous (glassy)

Identified July 29, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Yellow to golden-brown; Luster: Vitreous (glassy); Crystal Structure: Trigonal; Cleavage: None (exhibits conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed in hydrothermal veins, pegmatites, and sedimentary environments through the precipitation of silica-rich solutions under varying temperatures and pressures.

Uses & applications

Used in jewelry, ornamental carvings, lapidary arts, and mineral specimen collecting.

Geological facts

The yellow color in quartz is typically caused by natural irradiation acting on aluminum impurities or microscopic inclusions of iron oxide/hydroxide.

Field identification & locations

Can be identified by its distinct yellow coloration, high hardness (scratches glass), and glassy luster. Commonly found worldwide in pegmatites and quartz veins.