Tanah diatomea (misalnya, kieselguhr, tripolite dan diatomit) dan tanah semacam itu yang mengandung silika, dikalsinasi maupun tidak, dengan berat jenis sebesar 1 atau kurang

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 — Quartzite

Natural barium sulphate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 28.16 — Natural barium sulphate (barytes)

Other clays (not including expanded clays of heading 68.06), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths — Chamotte or dinas earths

Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — Apatite

Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers — Of a kind used in the manufacture of white cement

Natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk — Apatite

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 — Crude or roughly trimmed

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 — Blocks