Tag Archive for 'Ringwoodite'

$Top: monochrome image of USD 20 diamond taken under incident light, with the ringwoodite inclusion highlighted by a red square. Bottom: enlarged view of the area of the host diamond containing the ringwoodite inclusion; the shadow behind the rectangular area outlining the inclusion is probably a stress fracture in the diamond. Image credit: D.G. Pearson et al.$

Rare Mineral Ringwoodite Included within Diamond Points to ‘Oceans’ beneath Earth

Mar 14, 2014 by News Staff

First terrestrial discovery of an extremely rare mineral called ringwoodite confirms theory about huge water ‘reservoirs’ 410 to 660 km beneath...