Gold Nugget

Physical Properties

Hardness: 2.5-3.0 Mohs; Color: Metallic yellow to gold; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None (malleable); Specific Gravity: 19.3

Formation & Geological History

Formed in hydrothermal quartz veins by precipitation from hot fluids; typically released into alluvial deposits through erosion and weathering of mountain ranges.

Uses & Applications

Used extensively in jewelry, electronics for conductivity, investment (bullion), and dental applications.

Geological Facts

Gold is one of the most chemically inert elements, meaning it does not tarnish or rust. It is so malleable that a single ounce can be beaten into a sheet covering 300 square feet.

Field Identification & Locations

Identify in the field by its high weight (density), extreme malleability (it bends rather than shatters), and persistent yellow color even in shade. Found in stream beds (placer) and quartz veins.

Identified on: 5/7/2026

Mode: Standard