Erbium
From Tardis Wiki, the free Doctor Who reference
Erbium was a rare Earth element. The Tenth Doctor described it as an expressive secondary component to xenotime. (PROSE: The Bog Warrior)
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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)
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This page was last edited on 3 September 2020, at 15:21 (UTC).Last edited: 15:21, 3 September 2020 (UTC)