Section 05 Mineral products 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 18 Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; dolomite ramming mix 25 18 20 Calcined dolomite Commodity Code Description 25 18 20 00 Calcined dolomite 25 18 20 10 Merely cut by sawing or otherwise, into blocks or slabs of a rectangular (including s 25 18 20 90 Other