Psionic mine var addthis_config = {"data_track_addressbar":true};

The psionic mine is a mine that contains a group of psykers that has been driven insane from poisonous vapour that has been pumped into the chamber and then hermetically sealed. Their combined death cry sends psionic ripples through the Warp.¹

It was employed by the Word Bearers starship the Furious Abyss during the start of the Horus Heresy.¹

Sources

• ¹:Battle for the Abyss (Novel) by Ben Counter