mineral
Gold Nugget
Gold (Au)
AI-generated identification · may be incorrectMohs hardness 2.5-3; bright metallic yellow color; high density with specific gravity around 19.3; cubic crystal system but typically found as irregular nuggets or flakes.
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Physical properties
Mohs hardness 2.5-3; bright metallic yellow color; high density with specific gravity around 19.3; cubic crystal system but typically found as irregular nuggets or flakes.
Formation & geological history
Formed through hydrothermal processes where gold-bearing fluids precipitate gold in quartz veins, later weathered and concentrated in alluvial placer deposits.
Uses & applications
Primary use in jewelry, investment bullion, electronics manufacturing, and dentistry.
Geological facts
Gold is extremely malleable and ductile; a single ounce can be drawn into a wire 50 miles long. The largest nugget ever found was the Welcome Stranger in Australia.
Field identification & locations
Identified by its high weight, yellow metallic luster that does not tarnish, and lack of reaction to acid; commonly found in riverbeds and ancient placers.
