Sub-Chapter200520062007200820092010
Salt (including table salt)$5,987$201,212$11,766$280,744$468,324$273,067
Natural graphite.   $667  
Natural sands of all kinds $278$41,021$696$1,446$9,616
Quartz (other than natural sands); quartzite  $252   
Kaolin and other kaolinic clays, whether or not calcined.   $845  
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$341$382$6,700$318$382$709
Pumice stone; emery; other natural abrasives$34    $38
Marble, travertine, ecaussine and other stone$2,633$4,162$16,614$50,783$5,141$8,118
Granite, porphyry, basalt, sandstone and other stone$807$1,673$6,591$64,081 $1,278
Pebbles, gravel, broken or crushed stone    $1,730$356
Natural magnesium carbonate (magnesite)    $118$836
Gypsum; anhydrite; plasters $43,168$78,567$5,094$520$11,608
Quicklime, slaked lime and hydraulic lime$2,431$6,030$7,264$4,337$16,503$2,703
Portland cement, aluminous cement, slag cement$1,479,532$2,564,733$3,284,645$3,635,047$3,003,204$4,179,392
Mica, including splitings; mica waste.   $210  
Natural steatite, whether or not roughly trimmed $71 $508$193$642
Mineral substances$92  $1,323  
Total$1,491,857$2,821,709$3,453,420$4,044,653$3,497,561$4,488,363