mineral
Gold Nugget
Gold (Au)
AI-generated identification · may be incorrectMohs hardness of 2.5 to 3, rich yellow color, metallic luster, isometric crystal system, high density and specific gravity of 19.3.
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Physical properties
Mohs hardness of 2.5 to 3, rich yellow color, metallic luster, isometric crystal system, high density and specific gravity of 19.3.
Formation & geological history
Formed via hydrothermal veining where gold-bearing fluids precipitate in faults and fractures, often eroding into placer deposits over millions of years.
Uses & applications
Used primarily in jewelry, financial investment as bullion, electronics, and dentistry.
Geological facts
Gold is extremely malleable and ductile; a single gram can be drawn into a wire one kilometer long.
Field identification & locations
Identified in the field by its heavy weight, yellow metallic sheen, and resistance to tarnish or acid testing; found globally in alluvial riverbeds and quartz veins.
