mineral
Gold Nugget
Gold (Au)
AI-generated identification · may be incorrectHardness of 2.5-3 on the Mohs scale, golden-yellow color, metallic luster, isometric crystal system, no cleavage, and very high specific gravity.
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Physical properties
Hardness of 2.5-3 on the Mohs scale, golden-yellow color, metallic luster, isometric crystal system, no cleavage, and very high specific gravity.
Formation & geological history
Formed through hydrothermal processes where gold-bearing fluids precipitate in quartz veins, or through secondary placers where weathering concentrates dense nuggets in riverbeds.
Uses & applications
Primarily used in jewelry, financial investment, electronics, and dentistry.
Geological facts
Gold is extremely malleable; a single ounce can be beaten into a sheet covering 300 square feet. The largest nugget ever found was the Welcome Stranger in Australia, weighing over 2,300 ounces.
Field identification & locations
Identify by its high density, softness, inability to tarnish, and lack of streak change. Commonly found in alluvial gravels and quartz veins worldwide.
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