... 3mm,3-6mm,10-20mesh 2.Powder 100-1250mesh 3.USD400-800/MT 4.Process:dry and wet method 5.Pure ... biotite material Series: Muscovite, Phlogopite, biotite, sericite, wet ground and dry groundSize: 20mesh, 40mesh, 60mesh, 80mesh, 100mesh, 200mesh, 325- ... coating. (2) Mica powder is the basic raw material for mica ceramics products. (3) It can be used in fire-fighting dry powder, protecting layer ...