mineral

Gold Nugget

Native Gold (Au)

Hardness: 2.5-3 (Mohs scale); Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal system: Isometric; Cleavage: None; Specific Gravity: 19.3

Hardness: 2
Color: Golden yellow to brassy yellow
Luster: Metallic

Identified July 16, 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 (Mohs scale); Color: Golden yellow to brassy yellow; Luster: Metallic; Crystal system: Isometric; Cleavage: None; Specific Gravity: 19.3

Formation & geological history

Formed via hydrothermal veins in quartz and igneous rocks, or concentrated as placer deposits in riverbeds through erosion and high-density settling. Geological ages vary significantly from Archean to Tertiary.

Uses & applications

Used in jewelry, currency, electronics, dentistry, and aerospace due to its high conductivity and resistance to corrosion. Highly sought after by collectors and investors.

Geological facts

Unlike many other metals, gold is found in its pure native form. Its malleability is so high that a single ounce can be beaten into a sheet covering 100 square feet.

Field identification & locations

Identified by its high density (feels very heavy for its size), sectility (can be cut with a knife without shattering), and persistent color even in shade. Found in locations like California, Alaska, Australia, and South Africa.