mineral

Likely native gold-bearing specimen

Native gold (Au), possibly with quartz or other mineral matrix

AI-generated identification · may be incorrect

Brassy yellow with a metallic luster and irregular, nugget-like shape; native gold has Mohs hardness 2.5–3, cubic crystal structure, no cleavage, and very high specific gravity (~19.3). The photo alone cannot confirm whether this is gold or a look-alike sulfide.

Identified September 29, 2026More mineral →

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Physical properties

Formation & geological history

Native gold forms in hydrothermal veins and can accumulate as nuggets in stream gravels after erosion; deposits range from ancient to geologically recent.

Uses & applications

Gold is used in jewelry, investment, electronics, and dentistry; natural specimens are collected.

Geological facts

Gold is exceptionally dense, malleable, and resistant to tarnish. A streak test and density measurement can help distinguish it from pyrite, though testing may damage the specimen.

Field identification & locations

Check whether it dents or flattens rather than crumbling, and seek professional testing; common sources include placer deposits and quartz veins worldwide. The image does not show enough detail for a reliable identification.