| 10. |
|
2510 Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk. |
| 11. |
|
2511 Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816. |
| 12. |
|
2512 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. |
| 13. |
|
2513 Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, whether or not heattreated. |
| 14. |
|
2514 Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. |
| 15. |
|
2515 Ecaussine and other calcareous monumental or building stone; alabaster : other than Marble and travertine. |
| 16. |
|
2516 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. |
| 17. |
|
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; grenules cheeping and powder of stones heading 2515 or 2516 whether or not it treated. |
| 18. |
|
2518 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. |
| 19. |
|
2518 10 dolomite, Not calcined or sintered. |
| 20. |
|
2519 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. |
| 21. |
|
2520 Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate) whether or not coloured, with or without small quantities of accelerators or retarders. |
| 22. |
|
2521 Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. |
| 23. |
|
2522 Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825. |
| 24. |
|
2524 Asbestos. |
| 25. |
|
2525 Mica, including splitting; mica waste. |
| 26. |
|
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. |
| 27. |
|
2528 Natural 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. |
| 28. |
|
2529 Feldspar; leucite, nepheline and nepheline syenite; fluorspar. |
| 29. |
|
2530 Mineral substances not elsewhere specified or included. |
