mineral

Silver (Native or Alloyed)

Ag (Argentum)

Hardness: 2.5–3 (Mohs scale); Color: Silver-white (tarnishes to black); Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 10.5

Hardness: 2
Color: Silver-white (tarnishes to black)
Luster: Metallic

Identified March 3, 2026More mineral →

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Physical properties

Hardness: 2.5–3 (Mohs scale); Color: Silver-white (tarnishes to black); Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 10.5

Formation & geological history

Formed in hydrothermal veins and through the oxidation of silver-bearing minerals. Common in ore deposits with copper, gold, and lead. Geological age varies significantly by deposit localization.

Uses & applications

Used extensively in jewelry (often alloyed as Sterling Silver), electronics due to high conductivity, silverware, mirrors, and industrial photography.

Geological facts

Silver has the highest electrical and thermal conductivity of any metal. Native silver specimens can form unique wire-like or 'dendritic' growth patterns resembling tree branches.

Field identification & locations

Identify in the field by high density, extreme malleability, and characteristic white metallic streak. Found in major mining districts in Mexico, Peru, China, and the USA (Nevada/Arizona). Collectors value natural crystal specimens over processed metal.