mineral

Gold

Native Gold (Au)

AI-generated identification · may be incorrect

Hardness: 2.5-3; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric (Cubic); Cleavage: None; Specific Gravity: 19.3

Hardness: 2
Color: Golden-yellow
Luster: Metallic

Identified July 21, 2026More mineral →

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Physical properties

Hardness: 2.5-3; Color: Golden-yellow; Luster: Metallic; Crystal Structure: Isometric (Cubic); Cleavage: None; Specific Gravity: 19.3

Formation & geological history

Formed primarily in hydrothermal veins associated with igneous activity, or as secondary deposits in sedimentary placer (riverbed) gravels via erosion over millions of years.

Uses & applications

Extensively used in jewelry, electronics as a conductor, dental work, aerospace technology, and as a financial investment/currency.

Geological facts

Gold is extremely malleable; a single ounce can be stretched into a wire 50 miles long. It is also one of the few elements chemically inert enough to resist oxidation in air and water.

Field identification & locations

Identified by its high density (feels heavy for its size), high malleability (it will dent rather than shatter like pyrite), and its bright metallic yellow streak. Commonly found in quartz veins and stream beds.