> Gold: 19.3 g/cm^3, $8820/kg
> Tungsten: 19.25 g/cm^3, $110/kg
A 400 oz. 'gold' bar will have a 32.2 grams lighter than a true gold bar.
A 400 oz. gold bar occupies 645.2 cm^3; and has dimensions of 12.2 cm x 33
cm x 1.61 cm. This makes for a total surface area of 950.744 cm^2.
32.2g = 1.67 cm^3
A layer of gold 17.6 microns thick on a 400 oz. (minus 32.4g) bar of
tungsten will produce a 'gold' bar.
So for US$1370 (tungsten) and US$284 (gold) you have produced a 'gold' bar
worth US$110,000.
This is the reason why gold dealers/banks won't accept gold from just
anybody off the street.
Viking Coder
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Worth Two Cents?
http://www.2cw.org/VikingCoder
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