It depends what the metal is, troy ounces are units of measurements like inches, grams, tons, etc. Usually precious metals are given in troy ounces but without knowing which metal you are talking...
The spot price of gold (as of January 7, 2009) is US$839 per troy ounce, so 9 troy ounces is worth $7,551.
A couple of points to keep in mind:
-- The price of gold is very volatile right now, and...