mineral

Silver (Native Element / Alloy)

Silver (Ag)

Hardness: 2.5–3.0 (Mohs); Color: Silvery-white (tarnishes to black); Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 10.5

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

Identified March 28, 2026More mineral →

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Physical properties

Hardness: 2.5–3.0 (Mohs); Color: Silvery-white (tarnishes to black); Luster: Metallic; Crystal Structure: Isometric; Cleavage: None; Specific Gravity: 10.5

Formation & geological history

Formed in hydrothermal veins through the deposition of silver-rich fluids, often associated with volcanic activity or metamorphic processes. It is most commonly found as a secondary mineral in the oxidized zones of ore deposits.

Uses & applications

Extensively used in jewelry (usually as Sterling Silver, an alloy with 7.5% copper), electronics (highest electrical conductivity of any element), industrial catalysts, and photography.

Geological facts

Silver has been known since ancient times and was once considered more valuable than gold in ancient Egypt. It has natural antimicrobial properties and is used in medical applications.

Field identification & locations

Identify by its high density, extreme malleability, and characteristic metallic silver color (or dark tarnish). In the field, look for 'wire-like' or dendritic crystal forms in mining districts like those in Mexico, Peru, or the Southwest USA.