
mineral
Gold Nugget
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3 (Mohs scale); Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal system: Isometric; Cleavage: None; Specific Gravity: 19.3
- Hardness
- 2
- Color
- Golden yellow to brassy yellow
- Luster
- Metallic
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Physical properties
Hardness: 2.5-3 (Mohs scale); Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal system: Isometric; Cleavage: None; Specific Gravity: 19.3
Formation & geological history
Formed via hydrothermal veins in quartz and igneous rocks, or concentrated as placer deposits in riverbeds through erosion and high-density settling. Geological ages vary significantly from Archean to Tertiary.
Uses & applications
Used in jewelry, currency, electronics, dentistry, and aerospace due to its high conductivity and resistance to corrosion. Highly sought after by collectors and investors.
Geological facts
Unlike many other metals, gold is found in its pure native form. Its malleability is so high that a single ounce can be beaten into a sheet covering 100 square feet.
Field identification & locations
Identified by its high density (feels very heavy for its size), sectility (can be cut with a knife without shattering), and persistent color even in shade. Found in locations like California, Alaska, Australia, and South Africa.
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