mineral

Native gold nugget (probable)

Native gold, Au; possibly gold-bearing quartz

AI-generated identification · may be incorrect

Small irregular metallic yellow specimen with bright yellow-gold color and uneven/nuggety texture; gold is exceptionally dense (specific gravity ~19.3), malleable, and Mohs hardness 2.5–3. It may contain attached quartz or iron-oxide matrix, though the image is too small for confirmation.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Native gold forms from hydrothermal fluids in quartz veins and placer deposits produced by weathering and erosion; deposits range from ancient Precambrian terrains to geologically young stream gravels.

Uses & applications

Used primarily for jewelry, investment, electronics, dentistry, and specimen collecting; natural nuggets may command a premium over melt value.

Geological facts

Gold does not tarnish readily and leaves a yellow streak, unlike pyrite, which is brittle and usually darker/brassy. A non-destructive density, malleability, and streak test can help distinguish it from imitation material.

Field identification & locations

Common sources include Australia, Alaska, California, Canada, South Africa, and many hydrothermal ore districts. Confirm with a jeweler or assay; avoid scratching or acid testing a potentially valuable specimen.