mineral
Gold Nugget
Native Gold (Au)
Hardness: 2.5-3; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 19.3
- Hardness
- 2
- Color
- Golden-yellow
- Luster
- Metallic
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Physical properties
Hardness: 2.5-3; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 19.3
Formation & geological history
Formed in hydrothermal quartz veins via precipitation from hot, mineral-rich fluids. Often concentrated in sedimentary placer deposits through erosion of primary gold-bearing rocks.
Uses & applications
Used in investment as bullion, jewelry, electronics due to high conductivity, and dentistry.
Geological facts
Gold is one of the densest chemical elements. Most gold found by hobbyists is found in 'placer' deposits in stream beds where the heavy metal settles behind obstructions.
Field identification & locations
Identify by its high density, malleability (it bends rather than shatters), and yellow streak. Commonly found in California, Alaska, Australia, and South Africa.
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