Natural barium sulphate "barytes

Natural barium carbonate "witherite", whether or not calcined (excl. barium oxide)

Siliceous fossil meals, e.g. kieselguhr, tripolite and diatomite, and similar siliceous earths, whether or not calcined, of an apparent specific gravity of <= 1

Pumice stone

Emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated

Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a square or rectangular shape; slate powder and slate refuse

Marble and travertine, crude or roughly trimmed

Marble and travertine, merely cut, by sawing or otherwise, into blocks or slabs of a square or rectangular shape

Ecaussine and other calcareous monumental or building stone of an apparent specific gravity of >= 2,5, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a square or rectangular shape (excl. in the form of granules, chippings or powder, and marble and travertine)

Granite, crude or roughly trimmed (excl. already with the characteristics of setts, curbstones and flagstones)

Granite, merely cut, by sawing or otherwise, into blocks or slabs of a square or rectangular shape (excl. already with the characteristics of setts, curbstones and flagstones)

Sandstone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a square or rectangular shape (excl. already with the characteristics of setts, curbstones and flagstones)

Porphyry, basalt and other monumental or building stone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a square or rectangular shape (excl. in the form of granules, chippings or powder, or already with the characteristics of setts, curbstones and flagstones, monumental or building stone of an apparent specific gravity of >= 2,5, granite and sandstone)

Pebbles and gravel for concrete aggregates, for road metalling or for railway or other ballast, shingle and flint, whether or not heat-treated

Broken or crushed dolomite and limestone flux, for concrete aggregates, for road metalling or for railway or other ballast