samarskite: Meaning and Definition of

sa•mar•skite

Pronunciation: (su-mär'skīt), [key]
— n.
  1. a velvet-black mineral, a complex columbate-tantalate of uranium, cerium, etc., occurring in masses: a minor source of uranium, thorium, and rare-earth oxides.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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