Beam gem

A beam gem was a hard to come by crystal that was usually found in navigation computer. They came in at least two sizes, designated size 4 and 5. Wedging three into the barrel of a blaster and altering the weapon's galven pattern allowed an individual to create a crude beam splitter.Cracken's Rebel Field Guide
==Sources==
*Cracken's Rebel Field Guide
==Notes and references==
Category:Beam splitters
Category:Crystals