Would making Hash oil take out the impurities?

Like i said in my last post i have a half pound of shake covered in rock wool. Would making hash oil with acetone take out all the impurities of the rock wool? I heard it seperates only the thc

well it seperates anything alcohol soluble, thc included. but i doubt theres too too much in the rockwool. it would probably be your best bet, as was the consensus in your other post. good luck dude, and just remember not to by huge bags of straight shake in the future.