Little is known of Silicon's life before before he came to the Institute but it is known that he was part of many students that enrolled at Xavier's school after Professor X declared himself worldwide as a mutant and told that the mansion is a safe place for mutants causing many young mutants too seek refuge there. He used his powers on both Bishop and Sage when they were "trespassing" the school on Emma Frost's order by using his powers to cause a distraction by attacking them , was bale to slip pass Sage when she tried to grab but Bishop captured him with the aid of his trench coat.

He possibly has lost his powers due to the events of M-Day and also possibly was killed on Stryker's attack on the school bus.

Powers

liquid body composition allows him to fly and reduce the friction of his physical form so that he can slide out of any grasp easlly without harm.