Gold Nugget / Flake

Native Gold (Au)

Rock Type: mineral

Gold Nugget / Flake

Physical Properties

Hardness: 2.5-3.0 on Mohs scale; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 15.5-19.3

Formation & Geological History

Formed via hydrothermal veins deep in the Earth's crust or as secondary deposits in riverbeds (placer deposits) through erosion and water transport over millions of years.

Uses & Applications

Used extensively in jewelry, electronics (conductors), dentistry, finance/investment assets, and high-end collector markets.

Geological Facts

Gold is one of the most malleable and ductile metals known; it is noble, meaning it does not oxidize or rust in air or water.

Field Identification & Locations

Identify by its extreme weight for its size and its malleability (it should dent, not shatter, under pressure) and lack of streak on a plate. Commonly found in quartz veins or stream gravels.

Identified on: 5/7/2026

Mode: Standard