Modern "silver eagle" coins are 99.9% silver, which is about as close as you can get to pure silver using normal refining techniques.
Old silver $1 coins (1935 and earlier) are sometimes confused with modern eagles, but they're not the same. They were made of 90% silver to stand up to circulation wear, and contain about 24 gm of pure silver with the remainder being copper.
A 2007-W Silver Eagle is one Troy ounce of pure silver.
The U.S. silver eagle is 99.9% silver with a miniscule amount of copper.
what is the value of a 2009 silver eagle dolar
Modern Silver Eagles (1986 to date) contain One Ounce of pure silver.
The U.S. Silver Eagle is one troy ounce of pure silver. As of 22 January 2013, it's worth $32.
If you mean a American Silver Eagle dated 2000, it's one ounce of pure silver.
8-4-11>>> This is a American Silver Eagle 1 ounce bullion coin. It is one ounce of pure silver.
The coin is NOT a "Silver Eagle", it's a Peace dollar. Silver Eagles are 1 ounce bullion coins of pure silver, first made in 1986. A 1935 Peace dollar is 90% silver, most circulated coins are valued from $30.00-$40.00.
From your description the coin is a Americain Silver Eagle that is made from one ounce of 99.9% pure silver, value as of today is about $19.00
7-4-11>>> The coin is actually an American Silver Eagle bullion coin that is made from one ounce of .999 pure silver.
About $2.
The silver eagle coin has been the only US coin struck in pure silver. All other US silver coins were produced with an alloy of silver. Dollars, halves, quarters and dimes were produced with 90% silver prior to 1964. Halves were struck in 40% silver from 1965-1970.