mineral

Gold

Native Gold (Au)

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

Hardness: 2
Color: Golden yellow
Luster: Metallic

Identified June 28, 2026More mineral →

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Physical properties

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

Formation & geological history

Primarily formed in hydrothermal veins and volcanic deposits through precipitation from hot, mineral-rich fluids. Can be billions of years old, often associated with Precambrian shields.

Uses & applications

Extensively used in jewelry, electronics, dentistry, aerospace, and as a financial reserve/investment currency.

Geological facts

Gold is one of the most ductile and malleable metals; one ounce can be stretched into a wire 50 miles long. It is chemically inert and does not tarnish or oxidize.

Field identification & locations

Identify by its high density (heaviness), yellow streak, and lack of cleavage. Often found in quartz veins or as placer deposits in riverbeds. Collectors look for native gold in quartz or distinct crystal forms.