mineral

Iron-stained quartz-rich rock, possibly quartz vein material

Quartz (SiO₂) with iron-oxide staining; host rock not identifiable from the image

AI-generated identification · may be incorrect

Rough, angular specimen with pale translucent-to-opaque quartz and brown-yellow iron staining; quartz hardness 7, vitreous luster, trigonal crystal structure, no cleavage, and specific gravity about 2.65. The dark area may be shadow or a different mineral, so its identity is uncertain.

Identified September 28, 2026More mineral →

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At a glance

Common name: Iron-stained quartz-rich rock, possibly quartz vein material
Scientific name: Quartz (SiO₂) with iron-oxide staining; host rock not identifiable from the image
Category: mineral
Identified: September 28, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a common rough specimen; higher value would require attractive crystals, unusual inclusions, or known provenance.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Quartz commonly forms when silica-rich fluids fill fractures and crystallize as veins; iron oxides can stain it during later weathering. Age and precise formation environment cannot be determined from the photograph.

Uses & applications

Quartz is used in glass, electronics, and decorative stone; attractive pieces may be collected or cut, though this specimen appears rough and ordinary.

Geological facts

Quartz is one of Earth’s most abundant minerals and commonly occurs in veins cutting many rock types.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch glass, and absence of cleavage; iron staining often marks weathered fractures. Quartz veins occur worldwide, but the locality is unknown here.