mineral

Gold

Native Gold (Au)

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

Hardness: 2
Color: Golden-yellow
Luster: Metallic

Identified April 27, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed in hydrothermal quartz veins and as placer deposits in sedimentary environments. It is often created during late-stage volcanic activity or as a byproduct of mountain-building processes.

Uses & applications

Used primarily in jewelry, currency, electronics due to high conductivity, dentistry, and aerospace engineering.

Geological facts

Gold is incredibly ductile; a single ounce can be drawn into a wire 50 miles long. It is also nearly indestructible and chemically inert, meaning it won't rust or tarnish.

Field identification & locations

Identify by its high density (heaviness), soft malleability (it bends rather than shatters), and persistent metallic luster even in low light. Found in lode deposits or sifted from riverbeds.