Gravity separation process is used for the concentration of (a) Calamine (b) Haematite (c) Chalcopyrite (d) Bauxite Gravity separation process is used for the concentration of (a) Calamine (b) Haematite (c) Chalcopyrite (d) Bauxite November 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,