found on the planet Hargeeva, this mineral had many unique properties. The chief property was that ostrine could absorb heat like a sponge. This made it a valuable mineral for the production of armor plating for stormtroopers and soldiers. Ketrian Altronel discovered a method of crystalline manipulation and plas-bonding of certain trace elements that modified raw ostrine into a heat-absorbing material unlike anything else in the galaxy. Its natural absorption properties were multiplied ten-fold. Major Nial Pedrin took the formula for use by the Empire, and hoped to bring Ketrian to Coruscant for more research. However, she defected while en route to an Imperial facility, and used the formula to improve the firepower of X-Wings by adding ostrine to the housings of their laser cannons.