Regarding the materials themselves, Amun's total tonnage breaks down into many different metals. The most abundant of these are iron and nickel, which alone would have a market value of about $8 trillion. (Keep in mind that a trillion is a million times a million.) Supplies of another metal, cobalt, on Amun would be worth perhaps $6 trillion. Then there are rarer metals such as platinum, iridium, osmium, and palladium, which together would add another $6 trillion to the investors' profits. The nonmetals, including carbon, nitrogen, sulfur, phosphorus, oxygen, hydrogen, and gallium, would be worth at least $2 trillion. If humans mined all of Amun, therefore (which would take many years), the gross profits would come to at least $22 trillion. It is difficult to estimate the upfront costs of such a mining operation. But even if they were as high as $1 trillion, the net profits would still be $21 trillion. Clearly, asteroid mining will be an extremely profitable business.

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