The following table gives specifications for U.S. Mint legal tender coins presently in circulation.

Denomination	Cent	Nickel	Dime	Quarter	Half Dollar	Presidential $1	Golden Dollar
Composition	Copper Plated Zinc 2.5% Cu Balance Zn	Cupro-Nickel 25% Ni Balance Cu	Cupro-Nickel 8.33% Ni Balance Cu	Cupro-Nickel 8.33% Ni Balance Cu	Cupro-Nickel 8.33% Ni Balance Cu	Manganese-Brass 88.5% Cu 6% Zn Zn, 3.5% Mn 2% Ni	Manganese-Brass 88.5% Cu 6% Zn 3.5% Mn 2% Ni
Weight	2.500 g	5.000 g	2.268 g	5.670 g	11.340 g	8.1 g	8.1 g
Diameter	0.750 in. 19.05 mm	0.835 in. 21.21 mm	0.705 in. 17.91 mm	0.955 in. 24.26 mm	1.205 in. 30.61 mm	1.043 in. 26.50 mm	1.043 in. 26.5 mm
Thickness	1.55 mm	1.95 mm	1.35 mm	1.75 mm	2.15 mm	2.00mm	2.00 mm
Edge	Plain	Plain	Reeded	Reeded	Reeded	Edge-Lettering	Plain
No. of Reeds	N/A	N/A	118	119	150	N/A	N/A

Quick Circulating Coin Facts:

• Mutilated Coins:  United States Coins no longer fit for circulation are classified as "uncurrent" or mutilated.
• Uncurrent coins are coins that are worn yet recognizable as to genuineness and denomination, and are machine countable.  Uncurrent coins are redeemed by the Federal Reserve Banks, then forwarded to the Mint for disposition.
• Mutilated coins are coins that are chipped, fused and not machine countable.  Mutilated coins are only redeemable through the United States Philadelphia Mint facility.

All uncurrent or mutilated coins received by the Mint are melted and reused in the manufacture of coinage strips.

Jul 21, 2008
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