mineral

Native gold-bearing rock (probable gold nugget/ore fragment)

Native gold, Au, associated with quartz and/or iron oxides

AI-generated identification · may be incorrect

Visible yellow metallic grains suggest gold in a porous, gray-beige matrix; gold has Mohs hardness 2.5–3, very high density (~19.3), metallic luster, and no cleavage. The matrix may include quartz, weathered sulfides, or iron oxides, but photography alone cannot confirm composition.

Identified September 1, 2026More mineral →

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At a glance

Common name: Native gold-bearing rock (probable gold nugget/ore fragment)
Scientific name: Native gold, Au, associated with quartz and/or iron oxides
Category: mineral
Identified: September 1, 2026
Method: Standard

AI Estimated Value

Approximately $5–$100+ for a tiny low-grade fragment; potentially much more if verified as native gold, depending primarily on gold weight and specimen aesthetics.

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 hydrothermal quartz veins and later liberated by weathering and erosion; the specimen’s geological age depends on its host deposit, commonly Precambrian to younger. A specific identification requires density, streak, microscopy, or assay testing.

Uses & applications

Gold is used in jewelry, electronics, dentistry, and investment; gold-bearing specimens are collected as natural nuggets or ore. Quartz-rich matrix specimens can have added display value.

Geological facts

Gold is highly malleable: genuine grains deform rather than crumble when pressed, unlike many yellow sulfide minerals. Its bright color may also be chalcopyrite or mica, so testing is important.

Field identification & locations

Common gold regions include Australia, Alaska, California, Canada, South Africa, and parts of South America. Check for a yellow metallic streak, unusual heft, and malleability; avoid destructive acid tests without expertise.