25 Salt, Sulphur, Earths and Stone, Plastering Materials, Lime and Cement

2501 Salts, Incl. Table Salt and Denatured Salt, and Pure Sodium Chloride, Whether or not in Aqueous Solution or Containing Added Anti-caking or Free-flowing Agents, sea Water [01/01/1988-31/12/1991: Salt, Incl. Table Salt and Denatured Salt, and Pure SodiumChloride, Whether or not in Aqueous Solution, sea Water] 2502 Unroasted Iron Pyrites 2503 Sulphur of all Kinds (Excl. Sublimed Sulphur, Precipitated Sulphur and Colloidal Sulphur) 2504 Natural Graphite 2505 Natural Sands of all Kinds, Whether or not Coloured (Excl. Gold- and Platinum-bearing Sands, Zircon, Rutile and Ilmenite Sands, Monazite Sands, and tar or Asphalt Sands) 2506 Quartz (Excl. Natural Sands), Quartzite, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape 2507 Kaolin and Other Kaolinic Clays, Whether or not Calcined 2508 Clays, Andalusite, Kyanite and Sillimanite, Whether or not Calcined, Mullite, Chamotte or Dinas Earths (Excl. Kaolin and Other Kaolinic Clays, and Expanded Clay) 2509 Chalk 2510 Natural Calcium Phosphates and Natural Aluminium Calcium Phosphates, Natural and Phosphatic Chalk 2511 Natural Barium Sulphate `barytes, Natural Barium Carbonate `witherite`, Whether or not Calcined (Excl. Barium Oxide) 2512 Siliceous Fossil Meals, E.g. Kieselguhr, Tripolite and Diatomite, and Similar Siliceous Earths, Whether or not Calcined, of an Apparent Specific Gravity of <= 1 2513 Pumice Stone, Emery, Natural Corundum, Natural Garnet and Other Natural Abrasives, Whether or not Heat-treated 2514 Slate, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape, Slate Powder and Slate Refuse 2515 Marble, Travertine, Ecaussine and Other Calcareous Monumental or Building Stone of an Apparent Specific Gravity of >= 2,5, and Alabaster, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or RectangulaR Shape (Excl. in the Form of Granules, Chippings or Powder) 2516 Granite, Porphyry, Basalt, Sandstone and Other Monumental or Building Stone, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape (Excl. in the Form of Granules, Chippings or PowderOr Already With the Characteristics of Setts, Curbstones and Flagstones, and Monumental or Building Stone of an Apparent Specific Gravity of >= 2,5) 2517 Pebbles, Gravel, Broken or Crushed Stone, for Concrete Aggregates, for Road Metalling or for Railway Ballast, Shingle and Flint, Whether or not Heat-treated, Macadam of Slag, Dross or Similar Industrial Waste, Whether or not Incorporating the Materials CIted in the First Part of the Heading, Tarred Macadam, Granules, Chippings and Powder, of Stones of Heading 2515 and 2516, Whether or not Heat-treated 2518 Dolomite, Whether or not Calcined or Sintered, Incl. Dolomite Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Rectangular `incl. Square` Shape, and Dolomite Ramming mix (Excl. Broken or Crushed Dolomite for Concrete AggreGates, Road Metalling or Railway or Other Ballast) 2519 Natural Magnesium Carbonate `magnesite, Fused Magnesia, Dead-burned `sintered` Magnesia, Whether or not Containing Small Quantities of Other Oxides Added Before Sintering, Other Magnesium Oxide, Whether or not Pure 2520 Gypsum, Anhydrite, Plasters Consisting of Calcined Gypsum or Calcium Sulphate, Whether or not Coloured, With or Without Small Quantities of Accelerators or Retarders 2521 Limestone Flux, Limestone and Other Calcareous Stone, of a Kind Used for the Manufacture of Lime or Cement 2522 Quicklime, Slaked Lime and Hydraulic Lime (Excl. Pure Calcium Oxide and Calcium Hydroxide) 2523 Cement, Incl. Cement Clinkers, Whether or not Coloured 2524 Asbestos (Excl. Products Made From Asbestos) 2525 Mica, Whether or not Rifted Into Sheets or Splittings, Mica Waste 2526 Natural Steatite, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape, Talc 2527 Natural Cryolite and Natural Chiolite 2528 Borates, Natural, and Concentrates Thereof, Whether or not Calcined, and Natural Boric Acids Containing <= 85% of H3bo3 Calculated on the dry Weight (Excl. Borates Separated From Natural Brine) 2529 Feldspar, Leucite, Nepheline and Nepheline Syenite, Fluorspar 2530 Vermiculite, Perlite and Other Mineral Substances, N.e.s. Chapter 25: Salt, Sulphur, Earths and Stone, Plastering Materials, Lime and Cement