The Al₂O₃ is a vital element of all refractory bricks, they are found in bauxite, Sillimanite, Mullite, Technical ceramic, Ceramic balls & fire clay. Al₂O₃ is in pure form or combined with other materials such as SiO₂, ZrO₂, and MgO to create many kinds & grades of refractory for different applications. We have pure single Alumina with 98-99% Al₂O₃ or Alumina compounds containing Al₂O₃ from 50 -95%.