mineral
Gold Nugget
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3 on Mohs scale. Color: Golden yellow with metallic luster. Crystal Structure: Isometric, cubic. Specific gravity is very high (15-19 depending on impurities).
- Hardness
- 2
- Color
- Golden yellow with metallic luster
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Physical properties
Hardness: 2.5-3 on Mohs scale. Color: Golden yellow with metallic luster. Crystal Structure: Isometric, cubic. Specific gravity is very high (15-19 depending on impurities).
Formation & geological history
Formed in hydrothermal veins through hot fluids circulating in the Earth's crust, later weathered and concentrated in alluvial placer deposits.
Uses & applications
Used primarily in jewelry, investment bullion, electronics, and dentistry.
Geological facts
Gold is extremely malleable and ductile; a single ounce can be drawn into a wire 50 miles long. It does not tarnish or corrode over time.
Field identification & locations
Identify by its high density, softness, yellow color, and lack of reaction to acid. Found worldwide in quartz veins and stream beds.
