61,046 Pages

Azbantium is a mineral 400 times harder than diamond. A twenty feet thick barrier of it appeared within the Twelfth Doctor's confession dial. In an effort to escape his confinement, the Doctor wore it away by pounding at it (TV: Heaven Sent) over a period of four and a half billion years. (TV: Hell Bent)

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.