noun simp·son·ite \ˈsim(p)sənˌīt\

Definition of simpsonite



  1. :  a mineral AlTaO4 consisting of an oxide of aluminum and tantalum in short hexagonal crystals

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Origin and Etymology of simpsonite

Edward S. Simpson †1939 Australian mineralogist + English -ite

Seen and Heard

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to cast off or become cast off

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