What is a 1965 US quarter made of?

Answer 1

US quarters dated 1965 and later are struck on "sandwich" planchets. The 'meat' is pure copper and the 'bread' is an alloy of copper and nickel.

Quarters dated 1964 and earlier are made of 90% silver and 10% copper.

Answer 2

U.S. quarters dated 1964 and earlier are made of an alloy of 90% silver and 10% copper.

Circulation quarters dated 1965 and later are made of a "sandwich" consisting of a pure copper core with outer layers of 25% nickel and 75% copper, for a total of about 92% copper, 8% nickel.
nickel

it's pretty ironic

Answer 3

A copper nickel alloy of 75% copper and 25% nickel on the outer layers bonded to a core of pure copper.

Answer 4

US quarters minted before 1965 were 90% silver and 10% copper.

Answer 5

All quarters since 1965 have been made of a 3-layer "sandwich" consisting of 2 outer layers of 75% nickel, 25% copper bonded to a pure copper core.

Answer 6

All quarters dated 1964 and earlier were made of an alloy of 90% silver and 10% copper.

Answer 7

80% Silver, 20% Copper

Answer 8

90% silver, 10% copper.