mineral

Native Gold (in Jewelry)

Gold (Au)

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

Hardness: 2
Color: Metallic yellow
Luster: Metallic

Identified March 5, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed primarily in hydrothermal quartz veins or as secondary deposits (placer deposits) through weathering; found in igneous and metamorphic rocks across many geological ages.

Uses & applications

Extensively used in jewelry, electronics, dentistry, and as a financial investment/standard.

Geological facts

Gold is extremely ductile; one ounce can be stretched into a wire 50 miles long. It is chemically inert and does not tarnish.

Field identification & locations

Identified by its high density (heaviness), bright yellow streak, and extreme malleability. Commonly found in quartz veins or stream beds.

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