mineral
Gold in Matrix
Native Gold (Au)
Hardness: 2.5-3.0 Mohs; Color: Metallic yellow; Luster: Metallic; Crystal Structure: Isometric/Cubic; Cleavage: None; Specific Gravity: 19.3 (pure)
- Hardness
- 2
- Color
- Metallic yellow
- Luster
- Metallic
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Physical properties
Hardness: 2.5-3.0 Mohs; Color: Metallic yellow; Luster: Metallic; Crystal Structure: Isometric/Cubic; Cleavage: None; Specific Gravity: 19.3 (pure)
Formation & geological history
Formed via hydrothermal veins where hot, mineral-rich fluids circulate through fractures in crustal rocks, or within magmatic deposits. Often found in quartz veins or associated with sulfur minerals.
Uses & applications
Primary use is in currency, jewelry, and electronics due to high conductivity and corrosion resistance. Also highly valued by mineral collectors as 'specimen gold'.
Geological facts
About 80% of the world's gold is still buried in the ground. The largest gold nugget ever found was the 'Welcome Stranger', weighing over 70kg.
Field identification & locations
Identify by its soft, malleable nature (it will dent rather than shatter) and high density. Commonly found in areas with past volcanic or tectonic activity.
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