Sub-Chapter20052006200720082009
Salt (including table salt)$1,269,192$794,241$51,227$275,253$108,259
Unroasted iron pyrites.   $41$13,255
Natural graphite.$928$10,535 $137$3,139
Natural sands of all kinds$886,603$71,966$14,916$36,222$1,055,085
Quartz (other than natural sands); quartzite$15,738$1,071 $107$48,961
Kaolin and other kaolinic clays, whether or not calcined.$15,257$90,390  $141,102
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$344,470$1,473,084$4,811$158,709$429,354
Chalk.$6,247$16,366$259$990,973$17,180
Natural calcium phosphates$7,837$18,338 $468$2,040
Natural barium sulphate (barytes)$2,375,974$1,131,269$510 $1,786,247
Siliceous fossil meals$365,032$95,407$255  
Pumice stone; emery; other natural abrasives$3,929$147   
Slate    $15,444
Marble, travertine, ecaussine and other stone$351$9,628$60  
Granite, porphyry, basalt, sandstone and other stone$181  $71$5,568
Pebbles, gravel, broken or crushed stone$576,751$282,331$22,005$23,318$476,457
Dolomite, whether or not calcined or sintered   $3,000 
Natural magnesium carbonate (magnesite)$23,862$119,951$1,424 $1,067
Gypsum; anhydrite; plasters$150,923$1,017,083$44,285$1,263,602$1,278,561
Limestone flux; limestone $17,572 $3,936 
Quicklime, slaked lime and hydraulic lime$1,458,696$1,324,507 $40,397$183,728
Portland cement, aluminous cement, slag cement$154,175,482$138,836,736$87,293,493$121,151,549$100,519,790
Asbestos. $310  $58,609
Mica, including splitings; mica waste.$13,805$2,999 $4,794$28,971
Natural steatite, whether or not roughly trimmed $382,893$42,673$14,550$65
Natural borates and concentrates thereof$21,043$12,459 $16,565 
Felspar; leucite and nepheline syenite $2,495  $15,422
Mineral substances$25,073$8,177$1,114$24,527$37,663
Total$161,737,374$145,719,955$87,477,032$124,008,219$106,225,967