
containing >35 million ounces (Moz) of gold and 2.7 million metric tons (Mt) of copper in epithermal ... and Vietnam are of nephrite. 'A double animal-headed pendant was found in place on the skull of a burial at Giong Ca Vo in southern Vietnam splintery-like crystal that is often found in quartz. Its elongated columns and prismatic crystals are reminiscent of natural black tourmaline and kyanite