| http://www.w3.org/ns/prov#value | - in 2002 for the exchange of metals and commodities, most notably gold and diamonds.?????The value of Marange's reserves are pegged at US$800 billion, labelled by a survey report from De Beers as more than eight times higher than average diamond fields at a ratio of more than 1000 carats per hundred tonnes (CPHT).The report, prepared for De Beers by noted geologist John Ward, draws Rio Tinto's conc
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