mineral

Gold Nugget

Native Gold (Au)

Hardness: 2.5-3.0 (Mohs scale), Color: Metallic golden yellow, Luster: Metallic, Crystal Structure: Isometric (rarely visible in nuggets), Cleavage: None, Specific Gravity: 19.3 (very high)

Hardness: 2

Identified April 12, 2026More mineral →

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Physical properties

Hardness: 2.5-3.0 (Mohs scale), Color: Metallic golden yellow, Luster: Metallic, Crystal Structure: Isometric (rarely visible in nuggets), Cleavage: None, Specific Gravity: 19.3 (very high)

Formation & geological history

Formed through hydrothermal processes in quartz veins, typically during tectonic activity. Over time, erosion releases the gold into streams, forming 'placer' deposits. Most nuggets are found in Cenozoic era sedimentary deposits.

Uses & applications

Predominantly used for investment (bullion), jewelry, and as highly prized collector specimens. Also used in electronics due to high conductivity and corrosion resistance.

Geological facts

Gold is incredibly ductile; a single ounce can be stretched into a wire over 50 miles long. Unlike many other metals, native gold is often found in pure or near-pure forms in nature.

Field identification & locations

Identify in the field by its extreme weight for its size (density), its distinctive metallic luster that persists in shade, and its malleability (it will dent or flatten under pressure rather than shatter). Commonly found in riverbeds and old alluvial deposits.