a Morgan or Peace style silver dollar (minted 1878-1921 and 1921-1935 respectively) are 90% silver by weight. Each coin was minted with approximately .77 troy ounces (24 grams) of silver, but after years of wear and tear abrasion and such, many dealers round down to .715 troy ounces. (be careful, one troy ounce is a little bit bigger than a conventional ounce)
Silver dollars dated 1935 and before weigh 26.73 grams.
The weight of the U.S. silver half dollar has changed over the course of it's history. In 1794 the silver half dollar weighed 13.48 grams and was 89.24 % silver. Then in 1836 the silver half dollar weight was changed to 13.36 grams and was 90% silver. In 1892 the silver half dollar weight was again changed to 12.50 grams which was the weight used until the final 90% silver half dollar struck for circulation was issued in 1964.
Silver Weight : 0.3617 Troy Ounce
The 1988-S proof Seoul Olympics silver dollar has a current retail value of $15.00
The coins have an Actual Silver Weight (ASW) of .36169oz of pure silver.
12.50 grams for a silver half dollar
6.25 gm
The size of a silver dollar, minted by the US Mint is: diameter: 38.1mm; weight is: 26.73 grams.
The Actual Silver Weight (except for Trade Dollars) of one dollar U.S. coins from 1840 to 1935 is .77344oz of pure silver.
12.5 g
Silver dollars were 90% silver with 10% copper, with a total weight of 26.73 grams.
The nominal weight of all Peace dollars is 26.73 grams.
The weight standard for all Morgan dollars is 26.73 grams