The golf-ball sized chunk of rock contains more than 30,000 diamonds, each less than a millimeter in size (rendering them worthless)

Not quite: http://www.microd...-powder/

The golf-ball sized chunk of rock contains more than 30,000 diamonds, each less than a millimeter in size (rendering them worthless)

Not quite: http://www.microd...-powder/

Actually
http://www.ebay.c...p;chn=ps

-A rock like that would be worth a fortune on the collectors market.