Since first being minted in 1794, the silver dollar is the second heaviest coin in circulation.
How much do silver dollars weigh?
Morgan and Peace silver dollars all weigh 26.73 grams (0.94 oz).
Interestingly, silver dollars are not pure silver. The coins contain 90% silver and 10% copper. The pure silver content is .77344 troy ounces.
The U.S. stopped minting dollar coins in 2011 for general circulation. Despite the government trying to promote their use over the years, dollar coins have never been popular.
~ Fun Fact ~
Have you ever wondered who is on the face of Morgan silver dollars?
That distinction belongs to a schoolteacher from Philadelphia, PA named Anna Williams. Morgan believed that she had the perfect profile to be the face on these coins.
Resources
http://www.coinflation.com/coins/1878-1921-Silver-Morgan-Dollar-Value.html