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Circulation-strike half dollars dated 1971 and later contain about 0.95 gm of nickel. The rest is copper, either in the pure copper core or mixed in the alloy used for the outer cladding.

Older halves don't contain any nickel. Those dated 1965-70 are made of 40% silver and 60% copper, and halves (as well as dimes and quarters) dated 1964 and earlier are 90% silver alloy.

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13y ago

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