Rock Identifier
Silver (Native Silver/Alloy Specimen) (Ag (Native Silver element), specifically a 90% Ag / 10% Cu alloy) — mineral
mineral

Silver (Native Silver/Alloy Specimen)

Ag (Native Silver element), specifically a 90% Ag / 10% Cu alloy

Hardness: 2.5-3 (Mohs scale); Color: Metallic white, tarnishing to gray/black; Luster: Brilliant metallic; Crystal structure: Isometric (fcc); Cleavage: None; Specific Gravity: 10.49 (pure silver)

Hardness
2
Color
Metallic white, tarnishing to gray/black
Luster
Brilliant metallic
Identified More mineral →

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Physical properties

Hardness: 2.5-3 (Mohs scale); Color: Metallic white, tarnishing to gray/black; Luster: Brilliant metallic; Crystal structure: Isometric (fcc); Cleavage: None; Specific Gravity: 10.49 (pure silver)

Formation & geological history

Formed in hydrothermal veins, the oxidation zones of ore deposits, and through magmatic processes. This specific specimen was minted in 1945 from refined silver bullion.

Uses & applications

Primary uses include historical currency, industrial electronics, solar panels, high-end jewelry (sterling), and a hedge against inflation (bullion).

Geological facts

This specimen is a 'Walking Liberty Half Dollar' designed by Adolph A. Weinman. It contains 0.36169 troy ounces of actual silver. It is considered one of the most beautiful U.S. coin designs in history.

Field identification & locations

Identify by the iconic image of Lady Liberty walking toward the sun; look for the '1945' date. Found in numismatic collections and precious metal reserves. Collectors value 'mint state' specimens with no wear.

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