^ As far as I understand it, the Crystal type is an upgrade from the Equipment so that they can get a better connection to the Innocence. Now we don't know much of Crystal type, sure, but I really doubt a parasitic type can become one...
As for the question, I believe that it's a Parasitic type. He swallowed it and it appeared on his forehead; it must be a part of his body = Parasitic. Plus, it's hinted that he eats a lot. Having another new type pop up so soon would be lame if you ask me. Plus, the Innocence seems to use Timothy's mind rather than his soul... Although I believe the soul is connected to the mind, I doubt you can manipulate a soul very easily.