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Webster 1913 Edition

Yttro-tantalite

{

Ytˊtro-co-lum′bite

,

Ytˊtro-tan′ta-lite

, }

Noun.

(Min.)

A tantalate of uranium, yttrium, and calcium, of a brown or black color.

Webster 1828 Edition

Yttro-tantalite

YTTRO-TANTALITE

,

Noun.

A mineral found in kidney-form masses; an ore of tantalum.