mineral

Quartz-rich gold-brown mineral specimen, possibly iron-stained quartz

Quartz (SiO₂), likely with limonite/goethite staining and minor sulfide or mica inclusions

AI-generated identification · may be incorrect

Translucent white to honey-gold, vitreous luster, irregular fracture, and no obvious cleavage; quartz hardness is Mohs 7 and specific gravity about 2.65. The rough, granular surface and brown-yellow coating are consistent with iron oxides, though the photo cannot confirm native gold.

Identified August 24, 2026More mineral →

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At a glance

Common name: Quartz-rich gold-brown mineral specimen, possibly iron-stained quartz
Scientific name: Quartz (SiO₂), likely with limonite/goethite staining and minor sulfide or mica inclusions
Category: mineral
Identified: August 24, 2026
Method: Standard

AI Estimated Value

$1-$15 as a common rough quartz specimen; potentially much more only if verified to contain visible native gold.

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

Likely formed in a hydrothermal quartz vein, where silica-rich fluids deposited quartz and later oxidation produced limonite/goethite staining; age depends on its host deposit and cannot be determined visually.

Uses & applications

Common quartz is used in glass, electronics, abrasives, and construction; attractive specimens are collected. If actual gold is present, it may have assay value, but appearance alone is insufficient.

Geological facts

Gold-colored surfaces may be iron oxides, mica, or weathered sulfides rather than gold. Gold is malleable and leaves a yellow streak, whereas quartz scratches glass and breaks rather than bending.

Field identification & locations

Common in hydrothermal veins and mining districts worldwide. Test with a steel file or glass, inspect with a loupe, and use an assay or density test before claiming gold.