----------------------------------------------------------------------------- 2001 Schedule B Book - Chapter 25 ----------------------------------------------------------------------------- Source: U.S. Census Bureau, Foreign Trade Division, Washington, DC 20233 Last modified: 12/22/00 ----------------------------------------------------------------------------- Schedule B Description and Unit of Quantity Code ----------------------------------------------------------------------------- 2501.00.0000 Salt (including table salt and denatured salt) and pure sodium chloride, whether or not in aqueous solution or containing added anticracking or free-flowing agents; sea water........... t 2502.00.0000 Unroasted iron pyrites.......................................................t 2503 Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur: 2503.00.0010 Crude or unrefined sulfur.............................................. t 2503.00.0090 Other......................................................................t 2504 Natural graphite: 2504.10.0000 In powder or in flakes................................................... kg 2504.90.0000 Other......................................................................kg 2505 Natural sands of all kinds, whether or not colored, other than metal-bearing sands of chapter 26: 2505.10.0000 Silica sands and quartz sands....................................... t 2505.90.0000 Other......................................................................t 2506 Quartz (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) shape: 2506.10.0000 Quartz.....................................................................t Quartzite: 2506.21.0000 Crude or roughly trimmed......................................... t 2506.29.0000 Other...................................................................t 2507.00.0000 Kaolin and other kaolinic clays, whether or not calcined........ t 2508 Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths: 2508.10.0000 Bentonite..................................................................t 2508.20.0000 Decolorizing earths and fuller's earth.............................. t 2508.30.0000 Fire-clay..................................................................t 2508.40 Other clays: 2508.40.0010 Common blue clay and other ball clays...................... t 2508.40.0050 Other...................................................................t 2508.50.0000 Andalusite, kyanite and sillimanite................................. t 2508.60.0000 Mullite....................................................................t 2508.70.0000 Chamotte or dinas earths............................................. t 2509.00.0000 Chalk........................................................................kg 2510 Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk: 2510.10.0000 Unground...................................................................t 2510.20.0000 Ground.....................................................................t 2511 Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816: 2511.10.0000 Natural barium sulfate (barytes)..................................... t 2511.20.0000 Natural barium carbonate (witherite).............................. kg 2512.00.0000 Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less............. t 2513 Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated: Pumice: 2513.11.0000 Crude or in irregular pieces, including crushed pumice..................................................................kg 2513.19.0000 Other...................................................................kg 2513.20 Emery, natural corundum, natural garnet and other natural abrasives: 2513.20.1000 Crude or in irregular pieces....................................... kg 2513.20.9000 Other...................................................................kg 2514.00.0000 Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape.................................................... t 2515 Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: Marble and travertine: 2515.11.0000 Crude or roughly trimmed......................................... t 2515.12.0000 Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape........... t 2515.20.0000 Other calcareous monumental or building stone; alabaster..................................................................t 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 rectangular (including square) shape: Granite: 2516.11.0000 Crude or roughly trimmed........................................ t 2516.12.0000 Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape........... t Sandstone: 2516.21.0000 Crude or roughly trimmed......................................... t 2516.22.0000 Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape........... t 2516.90.0000 Other monumental or building stone............................... t 2517 Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other 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 or 2516, whether or not heat-treated: 2517.10 Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and flint, whether or not heat-treated: 2517.10.0015 Pebbles and gravel.................................................. t 2517.10.0020 Limestone, except pebbles and gravel........................ t 2517.10.0055 Other...................................................................t 2517.20.0000 Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10.................................................... t 2517.30.0000 Tarred macadam.......................................................... t Granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated: 2517.41.0000 Of marble...............................................................t 2517.49.0000 Other...................................................................t 2518 Dolomite, whether or not calcined; dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; agglomerated dolomite (including tarred dolomite): 2518.10.0000 Dolomite not calcined................................................... t 2518.20.0000 Calcined dolomite........................................................ t 2518.30.0000 Agglomerated dolomite (including tarred dolomite)........... t 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: 2519.10.0000 Natural magnesium carbonate (magnesite)...................... t 2519.90 Other: 2519.90.1000 Fused magnesia and dead-burned (sintered) magnesia............................................................... kg 2519.90.2000 Caustic calcined magnesite...................................... t 2519.90.5000 Other...................................................................kg 2520 Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders: 2520.10.0000 Gypsum; anhydrite....................................................... t 2520.20.0000 Plasters...................................................................t 2521.00.0000 Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement (or for soil improvement).................................................................t 2522 Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825: 2522.10.0000 Quicklime..................................................................kg 2522.20.0000 Slaked lime................................................................kg 2522.30.0000 Hydraulic lime.............................................................kg 2523 Portland cement, aluminous cement, slag cement, super- sulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: 2523.10.0000 Cement clinkers........................................................... t Portland cement: 2523.21.0000 White cement, whether or not artificially colored......... t 2523.29.0000 Other...................................................................t 2523.30.0000 Aluminous cement ...................................................... t 2523.90.0000 Other hydraulic cements............................................... t 2524.00.0000 Asbestos.....................................................................t 2525 Mica, including splittings; mica waste: 2525.10.0000 Crude mica and mica rifted into sheets or splittings......... kg 2525.20.0000 Mica powder............................................................... kg 2525.30.0000 Mica waste.................................................................kg 2526 Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc: 2526.10.0000 Not crushed, not powdered........................................... kg 2526.20.0000 Crushed or powdered................................................... t 2527.00.0000 Natural cryolite; natural chiolite.......................................... t 2528 Natural borates and concentrates thereof (calcined or not), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H3BO3 calculated on the dry weight: 2528.10.0000 Natural sodium borates and concentrates thereof (whether or not calcined) ............................................. kg 2528.90.0000 Other......................................................................kg 2529 Feldspar; leucite, nepheline and nepheline syenite; fluorspar: 2529.10.0000 Feldspar...................................................................t Fluorspar: 2529.21.0000 Containing by weight 97 percent or less of calcium fluoride................................................................t 2529.22.0000 Containing by weight more than 97 percent of calcium fluoride................................................................t 2529.30.0000 Leucite; nepheline and nepheline syenite......................... t 2530 Mineral substances not elsewhere specified or included: 2530.10.0000 Vermiculite, perlite and chlorites, unexpanded................. kg 2530.20.0000 Kieserite, epsom salts (natural magnesium sulfates)......... kg 2530.40.0000 Natural micaceous iron oxides....................................... kg 2530.90 Other: 2530.90.0015 Earth colors............................................................kg 2530.90.0060 Other...................................................................kg -----------------------------------------------------------------------------