mineral

Gold

Native Gold (Au)

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

Hardness: 2
Color: Metallic yellow, golden
Luster: Metallic

Identified January 22, 2026More mineral →

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Physical properties

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

Formation & geological history

Formed primarily in hydrothermal quartz veins and volcanogenic massive sulfide deposits. It can also be found in sedimentary 'placer' deposits where it accumulates due to its high density after being weathered from primary rock.

Uses & applications

Used extensively in jewelry, electronics (due to high conductivity and corrosion resistance), investment/currency, and dentistry.

Geological facts

Gold is extremely malleable and ductile; a single ounce can be beaten into a sheet covering 100 square feet. It is one of the most chemically inert elements, meaning it does not tarnish or rust.

Field identification & locations

Identify in the field by its distinct yellow metallic luster, high density (heavy for its size), and extreme malleability (it will bend or dent rather than shatter). Commonly found in riverbeds (placers) or embedded in quartz veins.