Argentium sterling silver wire, 21 gauge, round, half hard. Argentium is a better grade of sterling silver than standard sterling silver.  Standard sterling silver is composed of 92.5% fine silver and 7.5% copper.  Argentium sterling silver replaces some of the copper content with a metaloid called germanium that retards the tarnishing process a bit.  This is not to say that it does not tarnish, it does, but not as fast as standard sterling silver does.

Item Details

• Size: 21 Gauge
• Shape: Round
• Type: Argentium Sterling
• Strength: Half Hard
• Copper Content: Between 3.5% to 5.5%
• Fine Silver Content: Between 93.5% to 96%
• Other Content: Germanium Between 2-4.5%