Pyrophyllite Raymond Mill, Pyrophyllite Powder Production Line
Pyrophyllite Raymond Mill, Pyrophyllite Powder Production Line . Pyrophyllite Raymond Mill, Pyrophyllite Powder Production Line, Pyrophyllite Materials. Pyrophyllite is a kind of clay mineral, which is a layered hydrous alumino silicate mineral with a 2:1 crystal structure. The chemical structural formula is Al2[Si4O10](OH)2.