How much does a half-dollar coin weigh?

Answer

A half-dollar coin weighs 11.340 grams, according to the United States Mint. If the coin becomes underweight due to natural wear or through mutilation, the U.S. Philadelphia Mint Center or the Federal Reserve Bank recollects the coin for melting.

Half-dollar coins are made of a nickel-copper alloy, the U.S. Mint states. Only 8.33 percent of the alloy is nickel, with the remaining nearly 91 percent of the alloy consisting of copper and hardening additives. Federal Reserve Banks can only collect coins that have been worn down. If a coin has been adulterated or mutilated, it must be sent directly to the U.S. Mint in Philadelphia.

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US Coins in Circulation
  Coin Composition Weight Cost to Produce
Penny Source Cent 2.5% Copper, 97.5% Zinc 2.5 g 2.41 cents
Nickel Source Nickel 25% Nickel, 75% Copper 5 g 11.18 cents
Dime Source Dime 8.33% Nickel, 91.67% Copper 2.268 g 5.65 cents
Quarter Source Quarter 8.33% Nickel, 91.67% Copper 5.67 g 11.14 cents
Half-Dollar Source Half Dollar 8.33% Nickel, 91.67% Copper 11.34 g N/A
Susan B Anthony Dollar Source Susan B Anthony Dollar 12.5% Nickel, 87.5% Copper 8.1 g N/A
US Dollar Coin Source $1 Coin 88.5% Copper, 6% Zinc, 3.5% Manganese, 2% Nickel 8.1 g 18.03 cents
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