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: 19.3 (very high)

Hardness: 2
Color: Golden yellow
Luster: Metallic

Identified July 3, 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: 19.3 (very high)

Formation & geological history

Formed primarily in hydrothermal quartz veins or as secondary deposits in river beds (placer deposits) due to weathering of gold-bearing rocks.

Uses & applications

Highly valued for jewelry making, investment bullion, electronics due to high conductivity, and collector's specimens.

Geological facts

Gold is one of the least reactive chemical elements and does not tarnish or oxidize. Most gold nuggets are 75% to 97% pure gold, with the remainder usually being silver or copper.

Field identification & locations

Identified by its high density (heavy weight for its size), sectility (can be cut with a knife), and malleability (flattens rather than shatters when struck). Common in areas with historical volcanic or tectonic activity.