Mineral

Gold Nugget

Native Gold (Au)

Hardness: 2.5-3.0 on Mohs scale; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric (cubic); Cleavage: None; Specific Gravity: 15.5-19.3 (very high).

Hardness: 2
Color: Golden-yellow
Luster: Metallic

Identified April 11, 2026More mineral →

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Physical properties

Hardness: 2.5-3.0 on Mohs scale; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric (cubic); Cleavage: None; Specific Gravity: 15.5-19.3 (very high).

Formation & geological history

Formed through hydrothermal processes in quartz veins or concentrated in alluvial placer deposits via erosion of lode deposits. Found in various geological ages where volcanic and metamorphic activity occurred.

Uses & applications

Used primarily in bullion for investment, high-end custom jewelry, electronics due to conductivity, and as a highly sought-after specimen for mineral collectors.

Geological facts

A gold nugget is a naturally occurring piece of native gold. The 'Welcome Stranger,' found in Australia in 1869, is the largest gold nugget ever found, weighing approximately 72 kg.

Field identification & locations

Identify in the field by its distinct weight (extreme density), malleability (it will dent, not shatter), and brilliant metallic luster that does not change at different angles or in shadow. Common in riverbeds of gold-bearing regions.