mineral
Gold
Native Gold (Au)
AI-generated identification · may be incorrectHardness: 2.5-3 on Mohs scale. Color: Metallic yellow, golden. Luster: Metallic. Crystal structure: Isometric (cubic). Cleavage: None. Specific Gravity: 19.3 (very high)
- Hardness
- 2
- Color
- Metallic yellow, golden
- Luster
- Metallic
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Physical properties
Hardness: 2.5-3 on Mohs scale. Color: Metallic yellow, golden. Luster: Metallic. Crystal structure: Isometric (cubic). Cleavage: None. Specific Gravity: 19.3 (very high)
Formation & geological history
Formed primarily in hydrothermal quartz veins and volcanogenic massive sulfide deposits. It can also be found in sedimentary 'placer' deposits where it accumulates due to its high density after being weathered from primary rock.
Uses & applications
Used extensively in jewelry, electronics (due to high conductivity and corrosion resistance), investment/currency, and dentistry.
Geological facts
Gold is extremely malleable and ductile; a single ounce can be beaten into a sheet covering 100 square feet. It is one of the most chemically inert elements, meaning it does not tarnish or rust.
Field identification & locations
Identify in the field by its distinct yellow metallic luster, high density (heavy for its size), and extreme malleability (it will bend or dent rather than shatter). Commonly found in riverbeds (placers) or embedded in quartz veins.
