At $17.58 an ounce as current price for pure silver, 4 ounces is worth $70.32.
First of all, silver U.S. quarters dated 1964 and earlier are 90% silver, not pure. As far as 1964, it's an extremely common date, currently worth about $4 for the silver content.
As of this time (10:43pm EDT) silver is $17.34 per oz. All US Morgan & Peace Dollars have the same composition of .900 silver/.100 copper with a net weight of .77344oz of silver they are not pure silver. Which gives them a value of $13.41 each for the bullion. The Mint does produce Silver Eagle one dollar bullion coins that are considered pure silver.
US coins were never made of pure silver, it's too soft. They had at least 10% copper in them so they wouldn't wear out right away. Please see the Related Question for more.
There is no such thing as a pure silver dime. See the related question below for more information.
10 grams
The value of pure silver is determined by weight and market prices. As of 22 June 2013, silver is worth $19.85 per ounce.
$1,672.00
A denarius was a Roman silver coin containing about 3 grams or 3.9 grams of pure silver. It's difficult to give its present day worth because its value would depend on the price of silver today. To find an exact answer, you would have to check the precious metal prices in the financial pages of your daily newspaper.
A real silver dollar struck in 1935 or before weighes 26.73 grams with a actual silver weight (ASW) of .77344oz of pure silver. So 26.73 grams X 28 coins = 805.28 grams or the ASW .77344 X 28 = 21.65632oz of pure silver
At $17.58 an ounce as current price for pure silver, 4 ounces is worth $70.32.
The "ley" refers to the fineness, 92.5% pure silver. The 33.625 is the weight in grams. 33.625 x .925 = 31.103 grams of pure silver, or one Troy ounce. An ounce of silver is worth $28.50 as of 1/14/11. The coin will probably carry a premium of a couple dollars or more above silver price, so it's worth about $30 right now.
It contains 24.057 grams of pure silver.
It depends on the price of gold at the time, however they are not pure gold. The gold medals for Sochi 2014 Olympics are worth approximately $566. Each gold medal has 525 grams of silver and about 6 grams of gold.
256 grams is a very large amount of gold. 256 grams of PURE gold could be worth anywhere from $15,000 - $20,000
First of all, silver U.S. quarters dated 1964 and earlier are 90% silver, not pure. As far as 1964, it's an extremely common date, currently worth about $4 for the silver content.
There is only 1 silver coin, the 40% Kennedy half dollar which contains 4.6 grams of pure silver.