Gold Nugget

Physical Properties

Hardness: 2.5-3.0 Mohs; Color: Metallic golden yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 19.3 (very heavy for its size)

Formation & Geological History

Formed in hydrothermal quartz veins at great depths or concentrated as placer deposits in riverbeds. Often associated with volcanic activity and tectonic plate movements over millions of years.

Uses & Applications

Used primarily in jewelry, electronics (conductors), dentistry, and as a financial investment/currency reserve. Highly sought after by collectors.

Geological Facts

Gold is incredibly ductile; a single ounce can be drawn into a wire 50 miles long. It is also one of the few metals that does not tarnish or corrode over time.

Field Identification & Locations

Identify by its density (it will feel heavy for its size), its golden streak, and the fact that it is malleable (it will dent rather than shatter). Commonly found in alluvial deposits in California, Alaska, and Australia.

Identified on: 5/7/2026

Mode: Standard