Dwarf star alloy was a material obtained from white dwarf stars. It was very expensive and very heavy. It was impregnable to any particle or radiation (TV: Day of the Moon) and was the only material that could hold time sensitive species. (TV: Warriors' Gate) Father of Mine was restrained with a chain made from dwarf star alloy. (TV: The Family of Blood) In 2009, UNIT had experimental diving suits made with dwarf star alloy. They were capable of surviving tens of kilometres under the ocean. (AUDIO: Submission) Roz Forrester used dwarf star alloy to crush an N-Form. (PROSE: So Vile a Sin)