INFOGRAPHIC: Comparing mining billionaires to run of the mill billionaires

Bloomberg has a terrific interactive chart that ranks the world's richest people by net worth, industry, geographical region, wealth sources and quite a few other measures.

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You can even look up which mining billionaire has the most children: it's Alberto Bailleres who maintains public holdings in mining and refining, companies like Fresnillo, Industrias Penoles.

He has seven children.