Soapstone mineral in both loose and powder form
Cast iron powder
Mag al bricks, light calcined magnesite lumps or powder, dead burnt magnesite lumps
Radex Powder
Zinc skimming, zinc ash , zinc dross
Limestone and lime powder
Sodium feldspar lumps and sodium feldspar powder
Gypsum powder, calcined gypsum powder
Carbon anode block and cathode powder