mineral
Gold
Native Gold (Au)
Hardness: 2.5-3 (Mohs scale), Color: Golden yellow, Luster: Metallic, Crystal Structure: Isometric/Cubic, Specific Gravity: 19.3
- Hardness
- 2
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Physical properties
Hardness: 2.5-3 (Mohs scale), Color: Golden yellow, Luster: Metallic, Crystal Structure: Isometric/Cubic, Specific Gravity: 19.3
Formation & geological history
Formed primarily in hydrothermal veins and associated with quartz; also found in placer deposits where concentrated by water through erosion. Found in ancient metamorphic and igneous terrains.
Uses & applications
Extensively used in jewelry, electronics for its conductivity, aerospace technology, investment, and dentistry.
Geological facts
Gold is one of the least reactive chemical elements and is solid under standard conditions. It is so malleable that a single ounce can be beaten into a sheet covering 100 square feet.
Field identification & locations
Identify by its high density (weight), golden streak, and malleability (it bends rather than shatters). Found in mountain streams (placer) or quartz veins.
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