It depends on the type of coin. The following list of weights applies to US silver coins minted before 1965 (when composition was switched to copper and nickel).
Dime: 2.5 grams
Quarter: 6.25 grams
Half dollar: 12.5 grams
Dollar: 26.73 grams
A silver dollar weighs a little less than an ounce.
As issued, the coins weigh 26.73 grams.
It's a Half Dollar NOT a dollar coin. The coin weighs 12.50 grams and contains .36169oz of pure silver.
U.S. silver dollars dated 1935 and earlier weigh 26.73 grams and contain 90% silver.
The modern Silver Eagle bullion coin weighs 1 ounce.
The quarters, half-dollar and dime are struck in 90 percent silver, generally referred to as "coin silver."The silver proof quarters weigh 0.180845 oz - multiply that by the current silver price to get the value for that coin.
They originally weighed 26.96 grams. Of course a circulated coin will weigh slightly less. And genuine silver dollars are NOT magnetic.
do you know how much money a silver 1872 dollar coin is and a 1922 silver dollar coin
it ways -12314154545411412321511545545545464510151554654654641454 /5 ouces Answer: 90% silver quarters weigh 6.25 grams. Modern clad quarters weigh 5.67 grams.
All U.S. quarters minted before 1965 weigh 6.25 grams and contain 90% silver with 10% copper, which is 5.625 grams of silver per coin.
Sorry but no U.S. coins dated 1958 weigh "One Troy Ounce". Look at the coin again an post new question.
Probably only scrap value. Silver is currently around 58p a gram. If you weigh the coin and multiply its weight in grams by 58p then you should get the coin's value. It could be worth anywhere from £20 - £30.