Gold Nugget

Physical Properties

Hardness: 2.5–3 on Mohs scale; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 19.3 (very heavy)

Formation & Geological History

Primary gold forms in hydrothermal quartz veins associated with igneous intrusions. This specimen appears as an alluvial nugget, formed when gold is weathered out of its host rock and concentrated in streams/riverbeds through water action and erosion.

Uses & Applications

Used primarily for currency, jewelry, investment bullion, electronics due to high conductivity, and dentistry.

Geological Facts

Gold is one of the most malleable and ductile metals known; a single gram can be beaten into a sheet of one square meter. Native nuggets are often found through gold panning or metal detecting.

Field Identification & Locations

Identified by its high density and inability to be crushed (it is malleable and will dent/bend rather than shatter like pyrite). Found in placer deposits in river gravels or lode deposits in quartz veins.

Identified on: 4/23/2026

Mode: Standard