mineral
Gold
Gold (Au)
AI-generated identification · may be incorrectMohs hardness 2.5, golden-yellow color, metallic luster, isometric crystal system, high specific gravity of 19.3.
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Physical properties
Mohs hardness 2.5, golden-yellow color, metallic luster, isometric crystal system, high specific gravity of 19.3.
Formation & geological history
Formed in hydrothermal veins and placer deposits through precipitation from hot mineralized fluids over millions of years.
Uses & applications
Used extensively in jewelry, electronics, investment coinage, and aerospace applications.
Geological facts
Gold is extremely malleable; a single gram can be beaten into a sheet of one square meter.
Field identification & locations
Identified by its distinct yellow color, high density, and lack of tarnish; found worldwide in quartz veins and stream beds.
