
Based on the provided information, the standard weight for a Silver Dollar is 26.73 grams. This specification is a direct result of the coin's metallic composition, which was mandated by the Bland-Allison Act of 1878. Each Morgan Dollar was minted with a composition of 90% silver and 10% copper.
It is important to note that while 26.73 grams is the official weight for an uncirculated specimen, the actual weight of an individual coin may vary. The primary reason for any deviation from this standard is wear from circulation. As a coin is handled and used in commerce, microscopic amounts of its metal are worn away, leading to a slight reduction in its total mass.
This variance is a key reason why collectors and numismatists, such as the individual mentioned in the Facebook group context, often weigh their coins. Weighing a Morgan Dollar can help in assessing its degree of wear and can also serve as a preliminary step in verifying its authenticity, as counterfeit coins may not adhere to the precise weight and composition standards of official mint products. Therefore, an uncirculated Morgan Dollar should weigh 26.73 grams, but a slight decrease is expected for circulated examples.


