There can't be a pure silver 1965 dollar. No silver dollars were minted after 1935, and in any case pure silver is too soft for circulating coins. They all contained at least 10% copper.
The coin has .77344oz of pure silver.
None of the bicentennial Eisenhower dollar coins made for general circulation contain any silver or are worth more than face value. Only Proof and collectors coins sold from the US Mint are worth more. The special collectors coins are only 40% silver not pure silver.
Silver is $32.66 per ounce, the ASW (Actual Silver Weight) of a Morgan or Peace dollar is .77344oz of pure silver $32.66 X .77344= $25.26 this is the current MV.
There is .77344 of a Troy ounce (a little than 24 grams) of pure silver in a 1921 U.S. silver dollar.
From 1840 to 1935 all US silver dollars are 90% silver and have .77344oz of pure silver.
A genuine 1795 dollar is silver, but it's not pure silver. The coin is a fake if it's not silver.
The 1924 silver dollar is not pure silver. It is mixture of 90% pure silver and 10% copper.
No US Half Dollars are pure silver. The composition is .900 silver & .100 copper. For a value, the date and any mint marks are needed for an evaluation
No. The US has never and will never make pure silver dollars.
Pre-1965 dimes are 90% silver & 10% copper. The Actual Silver Weight (ASW) is .07234oz of pure silver.
Kennedy half dollars minted 1965-70 are 40% silver by content and weigh 11.5 grams. That makes 4.6 grams of silver per coin. One troy ounce contains 31.1 grams, so there are 0.148 ounces of silver per coin.
No it's not pure silver, only 90% silver and 10% copper.
A US silver dollar from 1840 to 1935 contains .77344oz of pure silver.
Neither. The Morgan silver dollar is 90% silver, 10% copper.
1964 was the only year JFK halves were made of 90% silver alloy. The composition was changed to 40% silver clad in 1965, and to copper-nickel clad in 1971. A 1964 Kennedy Half Dollar contains .3617 ounces of pure silver. Multiply this by the spot price of silver to get the bullion value of the coin. At the time of this writing, silver was $16 an ounce, making a 1964 Kennedy Half Dollar worth about $5.80
The coin isn't actually a dollar. It's a "silver eagle" containing 1 oz of pure silver and sold to collectors and investors. The $1 denomination is artificial. Its actual value changes with the price of silver bullion; as of 02/2010 it sells for about $17-18.
US coins were never made of pure silver, it's far too soft. Up till 1964 the silver was alloyed with 10% copper for hardness. Half dollars dated 1965-70 were made of 40% silver because the price of silver had increased. No circulating US coins since have contained any silver. There's more information at the Related Question.