eschinite

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• Aeschynite-(Ce) — (or Aschynite, Eschinite, Eschynite) (Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6 is a mineral of cerium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen. Its name comes from the Greek word for shame . Its Mohs scale rating is 5 to 6.External… …   Wikipedia