
According to numismatic specifications, a silver dollar contains 0.77344 troy ounces of pure silver. This quantity is derived from the coin's total mass and its metallic composition.
The total weight of a standard Morgan dollar is 26.73 grams, which is equivalent to approximately 0.859 troy ounces. The coin itself is not pure silver but is an alloy composed of 90% silver and 10% copper. This composition was standard for United States silver coinage of the era, with the copper added to increase the coin's hardness and durability for circulation. Therefore, the actual silver weight within the coin is 90% of its total mass, resulting in the precise figure of 24.0566 grams, or 0.77344 troy ounces, of fine silver.


