Rockwool is actually made from rock.any rockwool fibreglass contains chemicals etc to make it fire resisted and mold resistant - it basically derived from insulation foam used in roofing/building trade- seriously i would not smoke it - who knows what poisons are in that shit, even if you separate who knows what been absorbed into the weed
Anybody can whoop anybodies ass. It's all a matter of timing.seriously i would get your money back. if this guy is selling you bullshit he probably thinks your some dumb kid. if you cant whoop his ass toss it and learn from your mistakes.
Seriously, it goes much deeper than the words.Lesson learned.