mineral
Gold Nugget
Gold (Au)
AI-generated identification · may be incorrectMohs hardness of 2.5 to 3, bright yellow color with a metallic luster, isometric crystal system, and no cleavage. It has a very high specific gravity around 19.3.
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Physical properties
Mohs hardness of 2.5 to 3, bright yellow color with a metallic luster, isometric crystal system, and no cleavage. It has a very high specific gravity around 19.3.
Formation & geological history
Formed through hydrothermal processes where gold-bearing fluids precipitate within quartz veins, often later eroded and concentrated in alluvial placer deposits.
Uses & applications
Used primarily for investment, jewelry making, and electronics due to its excellent conductivity and resistance to corrosion.
Geological facts
Gold is extremely malleable and ductile; a single gram can be beaten into a sheet of one square meter. The largest gold nugget ever found was the Welcome Stranger in Australia, weighing over 70 kilograms.
Field identification & locations
Identified by its high weight-to-size ratio, yellow metallic color, and resistance to tarnish or acid tests. Commonly found in stream beds and placer deposits worldwide.
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