WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
25.16 - Granite, porphyry, basalt, sandstone and other monn-mental or building stone, whether or not roughly trimmed or merely cut, b sawing or otherwise, into blocks or slabs of a rectangular (including square) shape [+). 25 16.11 2516.12 - Granite : - - Crude or roughly trimmed - - Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape - Sandstone 2516.90 - Other monumental or building stone 25 16.20 Granite is a ve hard anular igneous rock formed by the a glomeration of quartz c stals with feldspar anTmica. fvaries in colour (grey, green, ink, re , etc.) according to the re ative proportions of these three substances and the presence o?ron oxide or manganese oxlde. i Porphyry is a finely grained, slightly translucent variety of granite. Sandstone is a rock of sedimentary origin composed of small quartzose or siliceous particles naturally agglomerated by calcareous or siliceous materials. Basalt is also an igneous rock, blackish, very compact and extremely hard. of magnesium .! 15. The stones of this headin may be shaped or rocessed in the same ways as the stones of headin 25.15 (see the Exp anatory Note to that eading). It should be noted that when broken u in t e form of macadam these rocks are classified in heading 25.17, and that stones in shapes i entifiable as road or paving setts, flagstones or curbstones are classified in heading 68.01 even if merely shaped or processed as specified in the text of this heading. ~l f R Ecaussine, sometimes known as " petit qanit ", " Be1 'an granite "or " Flanders granite heading 25.15. Fused basalt is classified m beading 6 8 . 8 ", falls in When in the form of granules, chippings or powder, the stones of this heading fall in heading 25.17.
1.- Except where their context or Note 4 to this Chapter otherwise requires, the headings of this Chapter cover only products which are in the crude state or which have been washed (even with chemical substances eliminating the impurities without changing the structure of the product), crushed, ground, powdered, levigated, sifted, screened, concentrated by flotation, magnetic separation or other mechanical or physical processes (except crystallisation), but not products which have been roasted, calcined, obtained by mixing or subjected to processing beyond that mentioned in each heading. The products of this Chapter may contain an added anti-dusting agent, provided that such addition does not render the product particularly suitable for specific use rather than for general use. 2.- This Chapter does not cover : (a) Sublimed sulphur, precipitated sulphur or colloidal sulphur (heading 28.02); (b) Earth colours containing 70 % or more by weight of combined iron evaluated as Fe O 2 3 (heading 28.21); (c) Medicaments or other products of Chapter 30; (d) Perfumery, cosmetic or toilet preparations (Chapter 33); (e) Dolomite ramming mix (heading 38.16); (f) Setts, curbstones or flagstones (heading 68.01); mosaic cubes or the like (heading 68.02); roofing, facing or damp course slates (heading 68.03); (g) Precious or semi-precious stones (heading 71.02 or 71.03); (h) Cultured crystals (other than optical elements) weighing not less than 2.5 g each, of sodium chloride or of magnesium oxide, of heading 38.24; optical elements of sodium chloride or of magnesium oxide (heading 90.01); (ij) Billiard chalks (heading 95.04); or (k) Writing or drawing chalks or tailors' chalks (heading 96.09). 3.- Any products classifiable in heading 25.17 and any other heading of the Chapter are to be classified in heading 25.17. 4.- Heading 25.30 applies, inter alia, to : vermiculite, perlite and chlorites, unexpanded; earth colours, whether or not calcined or mixed together; natural micaceous iron oxides; meerschaum (whether or not in polished pieces); amber; agglomerated meerschaum and agglomerated amber, in plates, rods, sticks or similar forms, not worked after moulding; jet; strontianite (whether or not calcined), other than strontium oxide; broken pieces of pottery, brick or concrete.