THE ROLE OF DILITHIUM The key element in the efficient use of M/A reactions is the dilithium crystal. This is the only material known to Federation science to be nonreactive with antimatter when subjected to a high-frequency electromagnetic (EM) field in the megawatt range, rendering it ÒporousÓ to antihydrogen. Dilithium permits the antihydrogen to pass directly through its crystalline structure without actually touching it, owing to the field dynamo effect created in the added iron atoms. The longer form of the crystal name is the forced-matrix formula 2<5>6 dilithium 2<:>1 diallosilicate 1:9:1 heptoferranide. This highly complex atomic structure is based on simpler forms discovered in naturally occurring geological layers of certain planetary systems. It was for many years deemed irreproducible by known or predicted vapor-deposition methods, until breakthroughs in nuclear epitaxy and antieutectics allowed the formation of pure, synthesized dilithium for starship and conventional powerplant use, through theta-matrix compositing techniques utilizing gamma radiation bombardment. Æ