mineral
Gold in Quartz or Basalt
Native Gold (Au)
AI-generated identification · may be incorrectMohs hardness 2.5-3; bright yellow color with a metallic luster; isometric crystal system; no cleavage; high specific gravity (~19.3).
Identified More mineral →
Explore Gold in Quartz or Basalt in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Mohs hardness 2.5-3; bright yellow color with a metallic luster; isometric crystal system; no cleavage; high specific gravity (~19.3).
Formation & geological history
Formed through hydrothermal processes where gold-bearing fluids precipitate precious metals in fractures or host rocks.
Uses & applications
Used primarily in jewelry, investment bullion, electronics, and dentistry.
Geological facts
Gold is extremely malleable and ductile; a single ounce can be drawn into a wire 50 miles long.
Field identification & locations
Identify by its high density, softness, and refusal to react with acids; commonly found in quartz veins and placer deposits worldwide.
