I could find out the answer to this question, but I'd rather not die, so here it is:
I have a thermal suit that would allow me to walk on volcanic terrain – check. I happen to be next to volcanic terrain. I have an itching to go over there. BUT, … the suits are not implemented yet (functionally) and I’d rather not die if volcanic terrain is programmed the same way sun and black hole terrain is. So, the question is would I be alright if I were to walk on over to the lava field with my thermal suit on, as the game currently stands now?
You shouldn't be able to walk on volcanic terrain at all, due to terrain restrictions, until the suit is implemented. Terrain effects haven't been implemented either, so even if you somehow managed to maneuver onto a patch, it shouldn't harm you.
I dare you to make less sense.
Are you a newbie, or do you have access to newbies?