... :Our Ferro Silicon is specially used for Mineral Separation. This Ferro Silicon contains low Si about 15%. It is suitable as media ... diamond or other mining industries. Aplication: As Heavy Media for Dense Media Separation process of Diamond, Nickel, Zinc Mines etc. ... Chemical Analysis:Available Sizes: 48 mesh, 65 mesh, 100 mesh , 200 mesh 48D, 65D, 100D, 150D, 270D ...