The average cost of calcined alumina per ton is $965.00-1980. It is basically aluminum oxide that has been heated at a high temperature to get rid of all chemically combined water. It is utilized in a variety of industrial applications. It is used for structural ceramics, polishing compounds, as filler for rubber and plastics, in manufacturing paints, coatings and thermal spray powders. It possesses great chemical purity and is extremely hard in nature and has a high melting point.