mineral
Gold Nugget
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3.0 Mohs; Color: Golden yellow to brassy; Luster: Metallic; Crystal Structure: Isometric/Cubic (rarely shows crystals); Cleavage: None; Specific Gravity: 19.3 (very heavy)
- Hardness
- 2
- Color
- Golden yellow to brassy
- Luster
- Metallic
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Physical properties
Hardness: 2.5-3.0 Mohs; Color: Golden yellow to brassy; Luster: Metallic; Crystal Structure: Isometric/Cubic (rarely shows crystals); Cleavage: None; Specific Gravity: 19.3 (very heavy)
Formation & geological history
Formed via hydrothermal veins deep in the crust, often associated with quartz, and concentrated via erosion into secondary placer deposits in riverbeds and gravels.
Uses & applications
Used in jewelry, currency, electronics, dentistry, aerospace technology, and as a hedge against economic inflation.
Geological facts
Gold is chemically inert and does not rust or tarnish. Unlike fool's gold (pyrite), genuine gold is malleable and can be bent or flattened without shattering.
Field identification & locations
Identified by its high density, golden streak, and malleability. Commonly found in quartz veins and alluvial deposits in South Africa, Australia, and the western United States.
