HS heading 25.18: 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

HS heading 25.18 covers 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. It is in chapter 25 (salt; sulphur; earths and stone; plastering materials, lime and cement). It is split into 2 subheadings: 2518.10 (dolomite, not calcined or sintered) and 2518.20 (calcined or sintered dolomite). National tariff lines under heading 25.18 are live on border.bot for the United States (2 lines, also used by 1 other country).

• 2518.10Dolomite, not calcined or sintered
• 2518.20Calcined or sintered dolomite

• 25.01Salt (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
• 25.02Unroasted iron pyrites
• 25.03Sulphur of all kinds, other than sublimed sulphur, precipitated sulphur and colloidal sulphur
• 25.04Natural graphite
• 25.05Natural sands of all kinds, whether or not coloured, other than metalbearing sands of Chapter 26
• 25.06Quartz (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
• 25.07Kaolin and other kaolinic clays, whether or not calcined
• 25.08Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths
• 25.09Chalk
• 25.10Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk
• 25.11Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16
• 25.12Siliceous 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
• 25.13Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated
• 25.14Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
• 25.15Marble, travertine, ecaussine 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
• 25.16Granite, 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
• 25.17Pebbles, 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 25.15 or 25.16, whether or not heat-treated
• 25.19Natural 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
• 25.20Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate) whether or not coloured, with or without small quantities of accelerators or retarders
• 25.21Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
• 25.22Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 28.25
• 25.23Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers
• 25.24Asbestos
• 25.25Mica, including splittings; mica waste
• 25.26Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc
• 25.28Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % of H3BO3 calculated on the dry weight
• 25.29Feldspar; leucite, nepheline and nepheline syenite; fluorspar
• 25.30Mineral substances not elsewhere specified or included

• United States2 lines, used by 1 other country