How much silver is in a US silver dollar?

Answer 1

The Morgan, Peace and Liberty Seated dollars back to 1840 contain .77344 troy ounce (ASW) actual silver weight of pure silver. The silver-clad Eisenhowers in official mint sets and proof sets from 1971 to 1976 contain .3161 troy ounce (ASW). The Trade Dollars of 1873 to 1885 had .7874 troy ounce (ASW). I believe the very earliest US Silver dollars had a bit more, too, but don't have the numbers handy.

If you're referring to modern "silver eagle" coins that have a denomination of $1, these are actually bullion coins sold to collectors and investors and not for spending. They contain 1 oz of .999 fine silver.

*******

[*As a rule the composition of the US Silver Dollar is 90% silver and 10% copper]. Precious Metals are generally referred to in troy ounces and (ASW) actual silver weight.

Other years shown above have a different ratio of silver/copper

*Source: http://users.hal-pc.org/~canupnet/silverdollars.html

#One Avoirdupois ounce = .9116 troy ounce

#Source: http://www.onlygold.com/tutorialpages/conversion_tables_FullScreenView.htm

.76 troy ounces