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190 Archaea and Bentonite Clay

2008 Schedule B - Chapter 25
2508100000 Bentonite clay
Section V

Mineral Products

Section V - Chapter 25

Salt; Sulfur; Earths and Stone; Plastering Materials, Lime and Cement

Notes

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 crystallization), 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 antidusting agent, provided that
such addition does not render the product particularly suitable for a specific use rather
than for general use.

2. This chapter does not cover:

(a). Sublimed sulfur, precipitated sulfur or colloidal sulfur (heading 2802);

(b). Earth colors containing 70 percent or more by weight of combined iron evaluated
as Fe2O3 (heading 2821);

(c). Medicaments or other products of chapter 30;

(d). Perfumery, cosmetic or toilet preparations (chapter 33);

(e). Setts, curbstones or flagstones (heading 6801); mosaic cubes and the like
(heading 6802); roofing, facing or damp course slates (heading 6803);

(f). Precious or semiprecious stones (heading 7102 or 7103);

(g). Cultured crystals (other than optical elements) weighing not less than 2.5 g
(0.088 ounces) each, of sodium chloride or of magnesium oxide, of heading
3824; optical elements of sodium chloride or of magnesium oxide (heading
9001);

(h). Billiard chalks (heading 9504); or

(i). Writing or drawing chalks or tailors' chalks (heading 9609).

(j). See (i) above.

3. Any products classifiable in heading 2517 and any other heading of the chapter are to
be classified in heading 2517.

4. Heading 2530 applies, inter alia, to: vermiculite, perlite and chlorites, unexpanded; earth
colors, 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 molding;
jet; strontianite (whether or not calcined), other than strontium oxide; broken pieces of
pottery, brick or concrete.

2501000000 Salt (including table salt and denatured salt) and pure sodium
chloride, whether or not in aqueous solution or containing
added anticracking or free-flowing agents; sea water t
2502000000 Unroasted iron pyrites . . . . . . . . . . . .t
2503 Sulfur of all kinds, other than sublimed sulfur, precipitated
sulfur and colloidal sulfur:
2503000010 Crude or unrefined sulfur . . . . . . . . . .t
2503000090 Other . . . . . . . . . . . . . . . . . . . .t
2504 Natural graphite:
2504100000 In powder or in flakes . . . . . . . . . . .kg
2504900000 Other . . . . . . . . . . . . . . . . . . . .kg
2505 Natural sands of all kinds, whether or not colored, other than
metal-bearing sands of chapter 26:
2505100000 Silica sands and quartz sands . . . . . . . .t
2505900000 Other . . . . . . . . . . . . . . . . . . . .t
2506 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:
2506100000 Quartz . . . . . . . . . . . . . . . . . . .t
250620 Quartzite:
2506200010 Crude or roughly trimmed . . . . . . . . .t
2506200080 Other . . . . . . . . . . . . . . . . . .t
2507000000 Kaolin and other kaolinic clays, whether or not calcined t
2508 Other clays (not including expanded clays of heading 6806),
andalusite, kyanite and sillimanite, whether or not calcined;
mullite; chamotte or dinas earths:
2508100000 Bentonite . . . . . . . . . . . . . . . . . .
2508300000 Fire-clay . . . . . . . . . . . .

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