2507
KAOLIN AND OTHER KAOLINIC CLAYS, WHETHER OR NOT CALCINED
This heading covers kaolin and other kaolinic clays, the main constituents of which are kaolin minerals such as kaolinite, dickite and nacrite, anauxite, and halloysite. Such clays remain in the headi...
2515
MARBLE, TRAVERTINE, ECAUSSINE AND OTHER CALCAREOUS MONUMENTAL OR BUILDING STONE OF AN APPARENT SPECIFIC GRAVITY
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 (+). - Mar...
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
whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape (+). - Granite : 25
2517
PEBBLES, GRAVEL, BROKEN OR CRUSHED STONE, OF A KIND COMMONLY USED FOR CONCRETE AGGREGATES, FOR ROAD METALLING OR FOR RAILWAY OR OTHER BALLAST, SHINGLE AND
aggregates, for road metalling or for railway or other ballast, shingle and flint, whether or not heat-treated; macadam of slag, dross or similar industrial waste, whether or not incorporating the mat...
2518
DOLOMITE, WHETHER OR NOT CALCINED OR SINTERED, INCLUDING DOLOMITE ROUGHLY TRIMMED OR MERELY CUT, BY SAWING OR OTHERWISE, INTO BLOCKS OR SLABS OF A
or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape.
2523
PORTLAND CEMENT, ALUMINOUS CEMENT, SLAG CEMENT, SUPERSULPHATE CEMENT AND SIMILAR HYDRAULIC CEMENTS, WHETHER OR NOT COLOURED OR IN THE FORM OF CLINKERS
hydraulic cements, whether or not coloured or in the form of clinkers (+). 25