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25 - salt; sulfur; earths and stone; plastering materials, lime and cement
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25.01 - salt -
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25.02 - iron pyrites -
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25.03 - sulphur -
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25.04 - graphite - natural graphite:
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25.05 - sand - natural sands of all kinds, whether or not colored, other than metalbearing sands of chapter 26:
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25.06 - quartz - 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:
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25.07 - kaolin -
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25.08 - clays - other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths:
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25.09 - chalk -
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25.10 - calcium phosphates - natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk:
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25.11 - barium sulphate - natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816:
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25.12 - siliceous fossil meals -
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25.13 - pumice - pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heattreated:
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25.14 - slate -
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25.15 - marble, travertine and alabaster - 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:
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25.16 - granite - 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:
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25.17 - gravel and crushed stone - 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 heattreated; 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 heattreated:
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25.18 - dolomite - 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:
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25.19 - magnesium carbonate - natural magnesium carbonate (magnesite); fused magnesia; deadburned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure:
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25.20 - gypsum - gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders:
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25.21 - limestone -
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25.22 - quicklime - quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825:
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25.23 - cement - portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers:
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25.24 - asbestos - asbestos:
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25.25 - mica - mica, including splittings; mica waste:
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25.26 - soapstone - natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rect angular (including square) shape;talc:
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25.28 - borax -
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25.29 - feldspar - feldspar; leucite, nepheline and nepheline syenite; fluorspar:
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25.30 - other mineral - mineral substances not elsewhere specified or included:
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