mineral
Gold Nugget
Native Gold (Au)
Hardness: 2.5-3.0 (Mohs scale), Color: Golden-yellow to brass-yellow, Luster: Metallic, Crystal Structure: Isometric, Cleavage: None, Specific Gravity: 15.5-19.3
- Hardness
- 2
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Physical properties
Hardness: 2.5-3.0 (Mohs scale), Color: Golden-yellow to brass-yellow, Luster: Metallic, Crystal Structure: Isometric, Cleavage: None, Specific Gravity: 15.5-19.3
Formation & geological history
Formed in hydrothermal quartz veins or through secondary deposition in alluvial (placer) environments. Created from hot, mineral-rich fluids crystallizing in rock fractures.
Uses & applications
Currency, jewelry, electronics (superconductor), dentistry, aerospace, and high-value investment/collecting.
Geological facts
Gold is incredibly ductile; a single ounce can be stretched into a wire 50 miles long. Unlike many other yellow minerals, gold is malleable and will dent or flatten rather than shatter.
Field identification & locations
Identified by its high density (feels heavy for its size), sectility, and golden streak. Often found in stream beds or ancient river gravels using pans or sluices.
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