mineral
Silver (S925)
Native Silver (Ag)
AI-generated identification · may be incorrectHardness: 2.5-3 (Mohs scale), Color: Silvery-white (tarnishes to black), Luster: Metallic, Crystal structure: Isometric/Cubic, Cleavage: None, Specific gravity: 10.5
- Hardness
- 2
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Physical properties
Hardness: 2.5-3 (Mohs scale), Color: Silvery-white (tarnishes to black), Luster: Metallic, Crystal structure: Isometric/Cubic, Cleavage: None, Specific gravity: 10.5
Formation & geological history
Formed in hydrothermal veins and the oxidation zones of ore deposits. It occurs as a primary mineral in hydrothermal systems and can be across various geological ages.
Uses & applications
Primary use in jewelry (sterling silver), electronics due to high conductivity, coinage, photography (silver halides), and antimicrobial medical applications.
Geological facts
Silver is the most conductive and reflective element on Earth. The S925 stamp indicates Sterling Silver, which is 92.5% pure silver alloyed with 7.5% other metals, usually copper.
Field identification & locations
Identify by its high metallic luster, malleability, and hallmark stamps (like S925 or 925) in finished jewelry. In nature, look for its distinctive wiry or dendritic crystal habit.
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