mineral

Native Gold Nugget

Native Gold (Au)

Hardness: 2.5-3; Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal Structure: Isometric (rarely as crystals, usually nuggets); Cleavage: None; Specific Gravity: 19.3 (very high)

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

Identified July 3, 2026More mineral →

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Physical properties

Hardness: 2.5-3; Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal Structure: Isometric (rarely as crystals, usually nuggets); Cleavage: None; Specific Gravity: 19.3 (very high)

Formation & geological history

Formed primarily in hydrothermal quartz veins or as secondary deposits in riverbeds (placer deposits) due to weathering and erosion of gold-bearing rocks. The high density causes it to settle in gravel beds.

Uses & applications

Investment, jewelry, currency, electronics, and aerospace due to its high conductivity and resistance to corrosion.

Geological facts

Gold is chemically inert and does not tarnish. Most 'nuggets' found in nature are 75% to 95% pure gold, often alloyed with silver (electrum) or copper. The largest gold nugget ever found was the Welcome Stranger in 1869.

Field identification & locations

Identify by its extreme weight (high specific gravity), malleability (it will dent rather than shatter when struck), and its metallic yellow streak. Found globally in areas with historic volcanic activity and river drainage systems.