mineral
Gold
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3.0 (Mohs); Color: Golden yellow; Luster: Metallic; Crystal system: Isometric/Cubic; Cleavage: None; Specific Gravity: 19.3
- Hardness
- 2
- Color
- Golden yellow
- Luster
- Metallic
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Physical properties
Hardness: 2.5-3.0 (Mohs); Color: Golden yellow; Luster: Metallic; Crystal system: Isometric/Cubic; Cleavage: None; Specific Gravity: 19.3
Formation & geological history
Formed through hydrothermal processes in quartz veins, or concentrated in sedimentary placer deposits. Often associated with volcanic activity or metamorphic belts. It can be billions of years old or from more recent geological periods.
Uses & applications
Primary use in jewelry and investment (bullion). Extensively used in electronics due to high conductivity and corrosion resistance, and in dentistry and aerospace.
Geological facts
Gold is incredibly ductile; a single ounce can be drawn into a wire 50 miles long. It is chemically inert, meaning it does not rust or tarnish, which has made it a symbol of immortality and wealth throughout human history.
Field identification & locations
Identify in the field by its distinct sectility (can be cut with a knife) and malleability (flattens under a hammer instead of shattering like pyrite). Commonly found in quartz veins or as 'flakes' and 'nuggets' in stream beds. Collectors use panning or metal detecting to locate specimens.
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