mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Iron Oxide impurities

Hardness: 7 (Mohs); Color: Translucent to opaque white with yellow-brown/orange staining; Luster: Vitreous/greasy; Crystal Structure: Trigonal/hexagonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Hardness: 7 (Mohs)
Luster: Vitreous/greasy

Identified April 7, 2026More mineral →

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Physical properties

Formation & geological history

Formed from silica-rich hydrothermal fluids or solidifying magma veins. The yellow-brown hue comes from surface staining or inclusions of iron oxides like goethite or limonite, often appearing in metamorphic or igneous terrains.

Uses & applications

Quartz is used in electronics (oscillators), glassmaking, abrasives, and as semi-precious gemstones. Stained pieces are primarily for collection or landscaping.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Iron-stained quartz is sometimes colloquially called 'Golden Healer' in metaphysical circles.

Field identification & locations

Identify in the field by its hardness (will scratch glass and steel), lack of cleavage, and waxy/glassy appearance. It is commonly found in riverbeds, mountains, and road cuts worldwide.

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