25120000

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.

2513

Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated.

25131000

 Pumice stone

25132000

 Emery, natural corundum, natural garnet and other natural abrasives

25140000

Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape.

2515

Marble, 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.

25151100

Marble and travertine: Crude or roughly trimmed

251512

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

25151210

Blocks

25151220

Slabs

25152000

 Ecaussine and other calcareous monumental or building stone; alabaster

2516

Granite, 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.