mineral
Gold Grain
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3.0 Mohs; Color: Golden yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 15.5-19.3
- 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 Structure: Isometric; Cleavage: None; Specific Gravity: 15.5-19.3
Formation & geological history
Formed through hydrothermal processes in quartz veins or as secondary deposits in river beds (placer deposits). Geological age varies from Archean to Tertiary.
Uses & applications
Used in electronics, jewelry, currency, medicine, and as a hedge against inflation. High collector value for native specimens.
Geological facts
Gold is one of the least reactive chemical elements and is solid under standard conditions. Most gold found in nature is alloyed with silver.
Field identification & locations
Identify by its high density, extreme malleability (it will dent, not shatter), and persistent metallic luster even in low light or underwater.
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