Chapter 25: Salt; sulfur; earths and stone; plastering materials, lime and cement

Salt (including 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

Unroasted iron pyrites

Crude or unrefined sulfur

Other

In powder or in flakes:

Crystalline flake (not including flake dust)

Other

Other

Silica sands and quartz sands:

Sand containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron

Other

Other

Quartz

Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron

Other

Quartzite

Crude or roughly trimmed

Other

Kaolin and other kaolinic clays, whether or not calcined

Bentonite

Fire-clay

Other clays

Common blue clay and other ball clays

Decolorizing earths and fuller's earth

Other

Andalusite, kyanite and sillimanite

Mullite

Chamotte or dinas earth

Crude

Other

Unground

Ground

Natural barium sulfate (barytes):

Ground

Other

Natural barium carbonate (witherite)

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

Pumice stone

Crude or in irregular pieces, including crushed pumice

Other

Emery, natural corundum, natural garnet and other natural abrasives:

Crude or in irregular pieces

Other

Slate, 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:

Crude or roughly trimmed

Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape:

Marble

Travertine

Other calcareous monumental or building stone; alabaster

Granite:

Crude or roughly trimmed

Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape

Having a thickness of 7.5 cm or more

Other

Sandstone:

Crude or roughly trimmed

Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape

Other monumental or building stone

Having a thickness of 7.5 cm or more

Other

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

Pebbles and gravel

Limestone, except pebbles and gravel

Other

Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10

Tarred macadam

Granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated:

Of marble

Other

Dolomite, not calcined or sintered

Calcined or sintered dolomite

Natural magnesium carbonate (magnesite)

Other:

Fused magnesia and dead-burned (sintered) magnesia

Caustic calcined magnesite

Other

Gypsum; anhydrite

Plasters

Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement

Quicklime

Slaked lime

Hydraulic lime

Cement clinkers

Portland cement:

White cement, whether or not artificially colored

Other

Aluminous cement

Other hydraulic cements

Crocidolite (Blue)

Other

Amosite

Chrysotile:

Crudes

Milled fibers, group 3 grades (spinning fibers or equivalent)

Milled fibers, group 4 and 5 grades

Other

Other

Crude mica and mica rifted into sheets or splittings

Split block mica

Mica splittings

Other

Mica powder

Mica waste

Not crushed, not powdered

Crushed or powdered

Natural sodium borates and concentrates thereof (whether or not calcined)

Natural calcium borates

Other

Feldspar

Fluorspar:

Containing by weight 97 percent or less of calcium fluoride

Containing by weight more than 97 percent of calcium fluoride

Leucite; nepheline and nepheline syenite

Nepheline syenite

Other

Vermiculite, perlite and chlorites, unexpanded

Kieserite, epsom salts (natural magnesium sulfates):

Kieserite

Epsom salts

Other:

Natural cryolite; natural chiolite

Natural micaceous iron oxides

Other

Celestite

Earth colors

Other