... used in heat resistant material and filling of paper ma Brucite fibre is a kind of rare magnesium hydroxide fibre ... east cleavageA. Brucite fibre: 0-5mm, 0-10mm,0-20mm,0-30mm,0-40mm,0-50mm,0-60mm,Brucite powder:100mesh,20mesh, ... 325mesh,400meshB. Intrduction:Brucite fibre is a kind of rare magnesium ... 0.3 0.3D. Samples for free within 500g brucite