Coin Silver:
In the U.S., "coin silver" is the term for the alloy of 90% silver and 10% copper that was used to mint dimes, quarters and halves up to 1964, and dollars up to 1935.
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I have found the best place for me to get graphite blocks at a good price is ebay. Graphite blocks on ebay.
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Graphite : Elements & Compounds a blackish soft allotropic form of carbon in hexagonal crystalline form: ... -
MELTING POINT OF SILVER: The melting point of silver is 1763.474 Fahrenheit and 961.93 degrees Celsius
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