mineral

Iron-stained quartz (likely quartz vein material)

Quartz, SiO₂, with iron-oxide staining (commonly goethite and/or hematite)

AI-generated identification · may be incorrect

White to translucent quartz with rusty orange-brown coatings or veinlets; vitreous luster on fresh surfaces, Mohs hardness 7, trigonal crystal structure, and no cleavage. The image does not show enough detail to confirm exact minerals or specimen quality.

Identified September 30, 2026More mineral →

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Physical properties

Formation & geological history

Quartz crystallized from silica-rich fluids in fractures, with later oxidation of iron-bearing minerals producing the orange-brown staining. Such veins form in many rock types and span a wide range of geological ages.

Uses & applications

Commonly collected as a mineral specimen; attractive pieces may be cut or polished for décor or lapidary work. Ordinary iron-stained quartz has little industrial or jewelry value.

Geological facts

Quartz is one of Earth’s most abundant minerals and is notably resistant to weathering.

Field identification & locations

Look for glassy quartz, hardness sufficient to scratch glass, and rusty staining concentrated along fractures. Iron-stained quartz occurs worldwide; the photo alone cannot establish a specific locality or exact identification.