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 (cubic); Cleavage: None; Specific Gravity: 15.6–19.3 (very high)

Hardness: 2
Color: Golden-yellow
Luster: Metallic

Identified June 22, 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 (cubic); Cleavage: None; Specific Gravity: 15.6–19.3 (very high)

Formation & geological history

Formed primarily in hydrothermal quartz veins via deposition from hot, mineral-rich fluids. Nuggets are often found as secondary deposits in riverbeds (placer deposits) after eroding from host rock.

Uses & applications

Used extensively in jewelry, currency, electronics, and aerospace due to high conductivity and resistance to corrosion. Highly valued by collectors and investors.

Geological facts

Unlike many minerals, gold occurs in 'native' form, meaning it is not chemically bonded to other elements. The largest gold nugget ever found was the 'Welcome Stranger' in Australia, weighing 72 kg.

Field identification & locations

Identify in the field by its high density (feels heavy for its size) and malleability; unlike pyrite (Fool Gold), real gold will dent or flatten when struck rather than shattering. Common in mountainous regions with historical volcanic activity.