Chapter
25
Salt; sulphur; earths, stone; plastering materials, lime and cement
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Headings in this chapter
2501Salt (including table salt and denatured salt); pure sodium chloride whether or not in aqueous solution; sea water2502Iron pyrites; unroasted2503Sulphur of all kinds; other than sublimed, precipitated and colloidal sulphur2504Graphite; natural2505Sands of all kinds; natural, whether or not coloured, other than metal-bearing sands of chapter 262506Quartz; (other than natural sands), quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape2507Kaolin and other kaolinic clays; whether or not calcined2508Clays; (not including expanded clays of heading no. 6806), andalusite kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earth2509Chalk2510Natural calcium phosphates; natural aluminium calcium phosphates and phosphatic chalk2511Natural barium sulphate (barytes); natural barium carbonate, (witherite) whether or not calcined, other than barium oxide of heading no. 28162512Siliceous fossil meals (e.g. kieselguhr, tripolite and diatomite) and similar siliceous earths; whether or not calcined, of an apparent specific gravity of 1 or less2513Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat treated2514Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape2515Marble, travertine, ecaussine and other calcareous stone; of an apparent specific gravity of less than 2.5, alabaster, whether cut by sawing etc, into blocks, slabs of a rectangular (square) shape2516Granite, porphyry, basalt, sandstone, other monumental and building stone, whether or not roughly trimmed, cut, by sawing etc, into blocks or slabs of a rectangular (including square) shape2517Pebbles, gravel, crushed stone for concrete aggregates for road or railway ballast, shingle or flint; macadam of slag, dross etc tarred granules, chippings, powder of stones of heading no. 2515 and 25162518Dolomite, 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) shape2519Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; magnesium oxide, pure or not2520Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate), coloured or not, with or without small quantities of accelerators or retarders