Good morning! New guy here. I have been making knives for about a year, using a propane forge and stock removal... I want to pound on some steel now.....I am going to construct a brake drum, or similar, forge. Being in Florida, mail order coal is pretty much my only option.....but, along a rail line near me, I have picked up a bunch of coal. The train that carries it, feeds a coal fired electrical plant nearby. So the question is, is this coal acceptable for starting out? if so, are there any special considerations or things to know, before I fire this thing up?