mineral

Gold Nugget

Native Gold (Au)

Hardness: 2.5-3; Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal Structure: Isometric (rarely cubic/octahedral); Cleavage: None; Specific Gravity: 19.3 (very heavy)

Hardness: 2
Color: Golden yellow to brassy yellow
Luster: Metallic

Identified May 7, 2026More mineral →

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Physical properties

Hardness: 2.5-3; Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal Structure: Isometric (rarely cubic/octahedral); Cleavage: None; Specific Gravity: 19.3 (very heavy)

Formation & geological history

Formed through hydrothermal processes in quartz veins or concentrated in alluvial placer deposits through erosion and water transport over geological time.

Uses & applications

Highly valued as currency, investment, fine jewelry, electronics, and aerospace due to high conductivity and corrosion resistance.

Geological facts

Gold is one of the densest naturally occurring elements. Unlike many minerals, it does not tarnish or oxidize in air or water.

Field identification & locations

Identify by its high density (feel), malleability (it will dent, not shatter), and consistent golden color regardless of shadow. Common in California, Alaska, Australia, and South Africa.