You're actually supposed to use an extended tip lighter to light it, not throw a match on top of it, though I guess a match thrown on top would probably also work.
This video will educate you about fireplaces with fireglass.
Well, I was going to link a YouTube video about H Burners and fireglass but keep getting a 403 Forbidden error when I do so.
Have to look it up online yourself. "How to Install an H-Burner and Fire Glass in Your Fireplace".