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Old October 22nd 03, 02:25 AM
pochino
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In article ,
Chris Hackett wrote:

I have always known the Krugerrand to be 22ct gold. It contains 1 troy oz
(31.1035 grams) of pure gold. The total weight of a Krugerrand is 33.9303
grams or 1.0909 Troy oz. the balance being copper.


Okay so:

31.1035 grams of 24K gold will yield:

31.10 g Au
11.11 g Cu
11.11 g Ag
-----------
53.32 g 14k gold alloy (1:1 Cu:Ag ratio)

Since the Krugerrand has [33.9303-31.1035=] 2.8268 grams Cu in it, then
subtract that from the mix:

33.93 g Krugerrand
8.28 g Cu
11.11 g Ag
-----------
53.32 g 14k gold alloy (1:1 Cu:Ag ratio)


Brian

--
Brian Adam
Auckland NEW ZEALAND
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