mineral
Silver (Native or Alloyed)
Ag (Argentum)
AI-generated identification · may be incorrectHardness: 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
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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.
