Erbium

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Revision as of 07:18, 8 May 2014 by Mewiet (talk | contribs) (Created page with "'''Erbium''' was a rare Earth element. The Tenth Doctor described it as an expressive secondary component to xenotime. (PROSE: ''[[The Bog Warrior (short stor...")
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Erbium was a rare Earth element.

The Tenth Doctor described it as an expressive secondary component to xenotime. (PROSE: The Bog Warrior)