from my knowledge the u.s mint doesn't make platinum quarters. you might be thinking of a quarter eagle which is a $2.50 coin but they stopped making those in 1929. To solve this problem. post a picture of the coin in question and then I might be of further help
P.S.
Platinum coins are worth about a thousand dollars
A 20 cent, 10 cent, 5 cent and 1 cent coin.
A fifty-cent piece.
The coin (assuming it is a US coin) is only worth 1 cent. Either the coin was chemically treated to make it look gold or it was gold plated. Either way, it is not worth any more than one cent.
An Australian 5 cent coin weighs 2.83 grams. Figure it out.
You can get 71 cents with a 50 cent coin, a 10 cent coin, two 5 cent coins and one 1 cent coin.
If the question was supposed to ask about the coin's value, it's worth one cent.
The one cent Euro coin is worth 0.6452 of an American cent.
A silver 1829 5 cent coin is worth between £30 and £80
A five cent coin from 2005 is worth five cents.
50 cent
The penny coin which was worth a cent
I have this coin1908 Republique D'Haiti 50 cent piece coin worth
One cent
25 CENT
How much a 1901 Magyar 2 cent coin is worth depends on the condition of the coin. In average circulated condition, such a coin is worth 1 US dollar. In fully uncirculated condition, this coin is worth 5 US dollars.
Unless it's uncirculated it's a common coin worth face value only, about US 14¢ in early 2010.
its worth $5.00