Emily Dickinson Lexicon

YT-TRO-COL'UM-BITE, or YT-TRO-TAN'TA-LITE, n.

A mineral species, of which there are three varieties, found at Ytterby, in Sweden. They are said to be composed of columbic acid, tungstic acid, oxyd of yttrium, oxyd of calcium, oxyd of uranium, and sesquoxyd of iron. The whole are infusible before the blow-pipe; but they decrepitate, and assume a light color. They dissolve with borax; but are not acted upon by acids.