mineral

Native gold nugget

Gold (Au), commonly with minor silver or copper

AI-generated identification · may be incorrect

Bright metallic yellow color, very high metallic luster, malleable rather than brittle, and no cleavage; Mohs hardness 2.5–3, specific gravity about 19.3. The specimen appears to be a tiny irregular nugget, though the image is not detailed enough to confirm composition.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Native gold forms through hydrothermal mineralization in quartz veins and later concentrates in stream placers as resistant grains and nuggets. Most natural gold is geologically ancient, commonly associated with Precambrian to Mesozoic host rocks.

Uses & applications

Used primarily in jewelry, electronics, dentistry, investment, and scientific applications; small natural nuggets are collectible.

Geological facts

Gold is extremely dense and does not tarnish under ordinary conditions. Its yellow streak and ability to flatten under pressure distinguish it from most brassy sulfide minerals.

Field identification & locations

Commonly found in placer gravels and quartz-vein districts worldwide, including Australia, Alaska, California, Canada, and South Africa. Confirm with density, malleability, and an unglazed streak test; pyrite is brittle and leaves a dark streak.