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troy weight
measurement system
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troy weight, traditional system ofweight in theBritish Isles based on thegrain, pennyweight (24 grains),ounce (20 pennyweights), andpound (12 ounces). The troy grain, pennyweight, and ounce have been used since the Middle Ages to weighgold,silver, and otherprecious metals and stones. The name supposedly derives from the city ofTroyes in France, site of one of the majormedieval fairs. The troy pound was adopted by the U.S. Mint for the regulation of coinage in 1828.
- Related Topics:
- weight
- precious metal
- unit
The troy pound is equal to theapothecaries’ pound and to approximately 0.82avoirdupois pound and 0.373kilogram.