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• a  hydrous silicates of or relating to or resembling mica

News & Articles

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• Pangolin Diamonds Discovers Second Kimberlite in Botswana, Adds Leading Diamond Geologist Manfred Marx to Exploration ...
  -- New kimberlite found at Tsabong North Project has +20 hectare aeromagnetic anomaly -- Manfred Marx led field team that discovered De Beers' Orapa Diamond Mine, with $1B of annual sales --Volcanic micaceous sandy tuff present with inclusions of pyrope garnets, chromites, autoliths, and mantle xenolith fragments
  June 18, 2013 - Marketwire