mineral
Gold
Gold (Au)
AI-generated identification · may be incorrectMohs hardness of 2.5 to 3, bright golden yellow color, metallic luster, cubic crystal system, no cleavage, and high specific gravity (19.3).
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Physical properties
Mohs hardness of 2.5 to 3, bright golden yellow color, metallic luster, cubic crystal system, no cleavage, and high specific gravity (19.3).
Formation & geological history
Formed in hydrothermal veins, placer deposits, and associated with quartz veins through geological processes over billions of years.
Uses & applications
Used primarily in fine jewelry, electronics manufacturing, currency reserves, and investment bullion.
Geological facts
Gold is extremely ductile and malleable; a single gram can be drawn into a wire one kilometer long or beaten into a thin sheet.
Field identification & locations
Identified by its distinctive yellow color, high density, and softness; found globally in alluvial riverbeds and lode mines.
