mineral

Silver (Sterling Silver Jewelry)

Argentum (Ag) mixed with Copper (Cu)

Hardness: 2.5–3 on Mohs scale; Color: Silver-white (may tarnish to black); Luster: Metallic; Crystal Structure: Isometric/Cubic (Face-centered cubic); Cleavage: None; Specific Gravity: Approx. 10.49 for pure silver.

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

Identified March 20, 2026More mineral →

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Physical properties

Formation & geological history

Formed in hydrothermal veins and by secondary enrichment in the oxidized zones of ore deposits. Most silver is a byproduct of mining lead, copper, and zinc ores. Geological age varies globally from Archean to Tertiary.

Uses & applications

Used extensively in jewelry (as sterling silver, 92.5% purity), electronics due to high conductivity, coinage, silverware, photography, and medical antimicrobial applications.

Geological facts

Silver has the highest electrical and thermal conductivity of any element. It was one of the first five metals discovered and used by humans, with evidence of mining dating back to 3000 BCE in Anatolia.

Field identification & locations

Identify in the field by high reflectivity and '925' purity hallmarks on clasps. Native silver is rare but found in locations like Mexico, Peru, and Nevada. Collectors look for cubic or dendritic wire crystal forms.

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