Yttro-columbite

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Yttro-columbite (Min) A tantalate of uranium, yttrium, and calcium, of a brown or black color.
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Century Dictionary and Cyclopedia
    • n yttro-columbite Same as yttrotantalite.
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Chambers's Twentieth Century Dictionary
    • Yttro-columbite a brownish mineral found at Ytterby, a tantalate of yttrium, uranium, and iron, with calcium
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Etymology

Chambers's Twentieth Century Dictionary
From Ytterby, a town in Sweden, where it was first discovered.