mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale. Color: Translucent white to grey with yellow/brown iron oxide staining. Luster: Vitreous (glassy). Crystal Structure: Trigonal. Cleavage: None (conchoidal fracture). Specific gravity: 2.65.

Hardness: 7 on Mohs scale
Luster: Vitreous (glassy)

Identified March 25, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the cooling of magma or by hydrothermal activity. This specimen likely originated in a vein where silica-rich fluids crystallized. The rusted appearance is due to secondary iron oxide (limonite or hematite) coating from surface weathering.

Uses & applications

Used in the manufacture of glass, abrasives, and electronics (due to piezoelectric properties). Low-grade stained specimens are primarily collected by hobbyists or used as industrial aggregate.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Iron-stained quartz like this is often referred to as 'Golden Healer' in metaphysical circles, although geologically it is simply a dirty quartz crystal.

Field identification & locations

Identify in the field by its hardness (it will scratch glass) and lack of cleavage planes. It is commonly found in gravel beds, mountain ranges, and near volcanic sites globally. Look for the distinct waxy/glassy luster on fresh fracture surfaces.