YTTRIO-Tantalite, a mineral substance containing the new earth yttria, and the new metal tantalium, which latter is found by Dr Wollaston to be identical with columbium.
YTTRIO-Tantalite
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sub_entry · 169 chars · lineage ↗ · page image at NLS ↗
YTTRIO-Tantalite, a mineral substance containing the new earth yttria, and the new metal tantalium, which latter is found by Dr Wollaston to be identical with columbium.