mineral

Gold Nugget

Native Gold (Au)

Hardness: 2.5-3.0 on Mohs scale; Color: Golden yellow to brassy; Luster: Metallic; Crystal system: Isometric; Cleavage: None; Specific Gravity: 19.3 (very heavy).

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

Identified May 7, 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 to brassy; Luster: Metallic; Crystal system: Isometric; Cleavage: None; Specific Gravity: 19.3 (very heavy).

Formation & geological history

Formed via hydrothermal veins where hot, mineral-rich fluids deposit gold in quartz veins, or as placer deposits in riverbeds where eroded gold is concentrated by water flow.

Uses & applications

Primary use in jewelry, investment (bullion), electronics due to high conductivity, and dentistry.

Geological facts

Gold is incredibly malleable; a single ounce can be beaten into a sheet covering 100 square feet. It is one of the few elements found in its native form in nature.

Field identification & locations

Identify in the field by its high weight (heavier than lead), malleability (it dents rather than shatters when struck), and persistent color even in shade. Commonly found in quartz veins or stream gravels in volcanic terrain.