mineral

Silver (Native Silver Mineral)

Ag (Native Silver), Alloyed 90% Ag / 10% Cu

Hardness: 2.5-3 (Mohs scale), Color: Silvery-white (tarnishes to black), Luster: Metallic (highly reflective), Crystal Structure: Isometric (cubic), Cleavage: None, Specific Gravity: 10.5

Hardness: 2

Identified March 15, 2026More mineral →

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Physical properties

Hardness: 2.5-3 (Mohs scale), Color: Silvery-white (tarnishes to black), Luster: Metallic (highly reflective), Crystal Structure: Isometric (cubic), Cleavage: None, Specific Gravity: 10.5

Formation & geological history

Formed in hydrothermal veins and oxidation zones of ore deposits. This specific specimen was minted from refined silver sourced from the American West in 1922.

Uses & applications

Currency (historically), investment bullion, jewelry, industrial electronics, and numismatic collecting.

Geological facts

This specimen is a Peace Dollar, minted by the United States to commemorate the end of WWI. It contains 0.7734 troy ounces of pure silver and was designed by Anthony de Francisci.

Field identification & locations

Identify by its 38.1mm diameter, reed edges, and specific '1922' date stamping. In the field (numismatics), check for mint marks on the reverse and weigh it to ensure authenticity.

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