
According to official United States Mint specifications, a standard, uncirculated Silver Dollar has a weight of 26.73 grams. This precise weight is a direct function of the coin's metallic composition, which was mandated by law to be an alloy of 90 percent silver and 10 percent copper. The total fine silver content within each coin amounts to 0.7734 troy ounces.
It is crucial to understand that the actual weight of any given Morgan Dollar can vary from this official standard, primarily due to its history and condition. A coin that has been in circulation for an extended period will invariably lose a small amount of mass due to wear and tear, and therefore will weigh slightly less than 26.73 grams. Conversely, an uncirculated coin that has been well-preserved should be very close to the specified weight, with only minuscule deviations resulting from the minting process's accepted tolerance levels.
For this reason, weighing a Morgan Dollar is a fundamental practice for collectors and numismatists. A significant discrepancy from the standard weight is one of the most reliable indicators of a counterfeit coin. Forgeries are often struck from base metals that do not share the same density as the 90% silver alloy, resulting in a coin that is either noticeably lighter or heavier than an authentic specimen.


