Azbantium

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Revision as of 16:37, 29 November 2015 by The Dark Lord of Skaro (talk | contribs) (Cleanup)

Azbantium was a mineral 400 times harder than diamond. A mound of it appeared within the Twelfth Doctor's confession dial and the challenge set for him was to punch his way through it until he reached the portal that would bring him to Gallifrey. (TV: Heaven Sent)

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