troy weight
Gold and silver standard
Troy weight is a system of measurement used for precious metals and gemstones, where a troy pound contains twelve ounces rather than sixteen.
A troy ounce is heavier than a standard ounce, making it the unit quoted for gold and silver prices: Gold closed at $2,000 per troy ounce.
The system takes its name from Troyes, a French city that hosted medieval trade fairs.
Twenty grains per troy ounce
- grainCereal plant's harvest unit
- ounceOne-sixteenth of a pound
- poundWeight, strike, or kennel
- carat200 milligrams exactly
scale · balance · mass · calibration · precision · avoirdupois · apothecary · metric
Precious metal in bulk
- goldElement seventy-nine
- silverLustrous white precious metal
- platinumDense precious silvery metal
- palladiumElement forty-six, catalytic metal
ingot · fineness · karat · sterling · purity · bar · coin · assay
Polished ornamental minerals
- diamondsPrecious crystallized carbon
- pearlsIridescent oyster-made gems
- sapphireBlue precious corundum
- emeraldGreen precious beryl
ruby · necklace · bracelet · ring · earring · pendant · setting · appraisal
Historical medicine dispensers
- guildsCraftsmen's mutual aid societies
- Middle AgesEurope's feudal millennium
- mercantilismTrade policy favoring exports
- tradeExchange of commodities
commerce · France · medieval · antiquities · treasure · artifacts · standardization · merchants
pennyweight
Twenty grains per troy ounce
carat · scale · balance · mass · calibration · precision · avoirdupois · apothecary · metric · conversion
bullion
Precious metal in bulk
palladium · ingot · fineness · karat · sterling · purity · bar · coin · assay · refinery
gemstones
Polished ornamental minerals
emerald · ruby · necklace · bracelet · ring · earring · pendant · setting · appraisal · goldsmith
apothecaries
Historical medicine dispensers
- guildsCraftsmen's mutual aid societies
- Middle AgesEurope's feudal millennium
- mercantilismTrade policy favoring exports
trade · commerce · France · medieval · antiquities · treasure · artifacts · standardization · merchants · goldsmiths
coinage
Invented term or currency
planchet · die · striking · mintmark · mintage · collector · proof · grading · numismatist · sovereign
- measurementsheight, stature, meters, depth, pound
- weightsgram, kilogram, ounce, pound, ton
- assayinghallmarking, hallmarks, touchstone, scratch test, acid test
- reference tablesmultiplication table, addition table, multiplication tables, times table, times tables
- apothecary unitsscruple, dram, minim
troy weightavoirdupois
Common weight measurement system
metric system · SI units · grams · kilograms
weight, weighed, weighing, weights, troy, weighable, troy ounce