Bentonite,Barite,Walnut Shell(nut plug),Gilsonite,Industrial Salt,Hematite,Mica Flakes,Fiber Lock,Oyster Shell,Cellophane Flake,Gypsum,Red Iron Oxide,Silica Sand (all sizes),Dolomite,Feldspar,Calcite,Ordinary Portland Cement,White Cement,Sulphate Resistance,Clinker