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I've decided to compile a list of the grades of silver and their common names in one place as a handy reference.
Because silver is soft, it needs to be joined w/another metal, typically copper, to make it workable. The percentage of silver to the percentage of copper is what gives the silver its grade, as follows:
Fine | .999 | 99.9% silver to .1 % copper | Mexican | .950 | 95% silver to 5% copper | Sterling | .925 | 92.5% silver to 7.5% copper | Coin | .900 | 90% silver to 10% copper | German | .800 | 80% silver to 20% copper | Nickel and/or Alpaca Silver | not silver at all but an alloy of copper and nickel |
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