mineral

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Clear to white with orange-brown staining; Luster: Vitreous/Glassy; Structure: Trigonal/Hexagonal; Cleavage: None (Conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Clear to white with orange-brown staining
Luster: Vitreous/Glassy

Identified May 21, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: Clear to white with orange-brown staining; Luster: Vitreous/Glassy; Structure: Trigonal/Hexagonal; Cleavage: None (Conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed from hydrothermal veins or cooled silica-rich magma. The iron staining occurs when the mineral is exposed to iron-bearing groundwater which oxidizes into limonite or hematite over geological time.

Uses & applications

Raw quartz is used in glassmaking, abrasives, electronics (piezoelectric properties), and as decorative gravel. Iron-stained specimens are primarily of interest to hobbyist collectors.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Iron-stained quartz is sometimes referred to as 'Golden Healer' in metaphysical communities.

Field identification & locations

Identify by its ability to scratch glass and lack of cleavage. Commonly found in stream beds, weathered outcroppings, and gravel pits worldwide. Look for a glassy luster under the surface staining.