Gold and GemStone Mining Inc. secures 50 additional acres of prime alluvial diamond and gold mining concessions in Sierra Leone

DRAPER, UT--(Marketwire - May 31, 2012) - Gold and GemStone Mining Inc. (OTCBB: GGSM), an alluvial gold and diamond exploration and development stage mining company focused on Sierra Leone, West Africa has today announced that its local Joint Venture partner has...

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