ounce **
troy ounce
apothecaries' ounce

By the late 1980s this had increased to an average around $400 a troy ounce.

Gold's price finally stood at $1,350 per troy oz on 1 July 2010.

The fixing was finally set at $363.25 a troy ounce.

The whole set weighs a total of 26 troy ounces.

Gold was $2 to $2.40 higher, with December at $403.50 a troy ounce.

Between 1881 and 1922, over 3 million troy ounces of gold were extracted.

Silver finished at $6.937 a troy ounce, down from $7 on Friday.

The annual production was 370,000 to 380,000 troy ounces of ore.

The act also changed the nominal price of gold from $20.67 per troy ounce to $35.

Gold was $1.40 to $1.70 lower, with the active June contract at $370.50 a troy ounce.