mineral

Gold Mineral

Native Gold (Au)

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

Hardness: 2

Identified May 7, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed primarily in hydrothermal veins associated with igneous intrusions, often concentrated by metamorphic processes. It is also found in sedimentary placer deposits (alluvial sands and gravels).

Uses & applications

Used in jewelry, electronics, currency, dentistry, and aerospace due to its high conductivity and resistance to corrosion.

Geological facts

Gold is extremely malleable; a single ounce can be beaten into a sheet covering 100 square feet. It is one of the few elements found in its pure native state in nature.

Field identification & locations

Identified by its high density, metallic luster, and yellow streak. It does not tarnish. Found in quartz veins or as nuggets in riverbeds in locations like California, Alaska, South Africa, and Australia.