mineral

Gold Nugget

Native Gold (Au)

AI-generated identification · may be incorrect

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

Hardness: 2
Color: Golden-yellow
Luster: Metallic

Identified March 14, 2026More mineral →

Explore Gold Nugget in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

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

Formation & geological history

Formed through hydrothermal processes in quartz veins or as secondary accumulations in alluvial 'placer' deposits. Often found in Precambrian to Cenozoic geological formations.

Uses & applications

Primarily used for investment (bullion), jewelry, electronics, and aerospace due to its high conductivity and resistance to corrosion.

Geological facts

About 80% of the world's gold is still embedded in rock. The largest gold nugget ever found was the 'Welcome Stranger' in Australia, weighing 72 kg.

Field identification & locations

Identify by its high density (feels heavy for its size), extreme malleability (it will dent, not shatter), and consistent yellow streak. Found in stream beds and mountainous regions.