... . our Garnet is non-toxic and contains less than 0.1% “free silica”. There is no silicosis hazard, leachable heavy ... Mohs7.5Fe2O330%Melt point1400 CMnO00.5%Free Silica0.1% MaxTiO200.5%MgO1.50%CaO1.90%Typical applications:Lapping Making coated or bonded ... steel, steel plate, glass, aluminum alloy. And other precious metal )90/12090--120160--125Precise water jet-cutting, hole drilling, lapping .120 ...