Terbium was a rare Earth element.
The Tenth Doctor described it as an expressive secondary component to xenotime. (PROSE: The Bog Warrior)
Toggle search
Toggle menu
114.8K
75.1K
24.2K
3.7M
Tardis Wiki
Terbium was a rare Earth element.
The Tenth Doctor described it as an expressive secondary component to xenotime. (PROSE: The Bog Warrior)