Sub-Chapter200520062007200820092010
Salt (including table salt)$112,880$140,226$235,331$328,123$80,085$71,211
Natural sands of all kinds$1,888$455$5,022$15,690$15,742$23,702
Quartz (other than natural sands); quartzite$2,502   $13,728 
Kaolin and other kaolinic clays, whether or not calcined.$2,772$4,479$8,813$15,276$12,814$19,665
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$19,242$62,017$24,017$51,335$47,948$28,295
Chalk.$4,257$2,157$372$469$596$871
Natural calcium phosphates   $63,774$1,395$13,960
Natural barium sulphate (barytes)$21,281 $136,673$145,593 $31,178
Siliceous fossil meals$2,931 $482$25,533  
Pumice stone; emery; other natural abrasives    $179$50
Granite, porphyry, basalt, sandstone and other stone$2,250$2,717$976$356  
Pebbles, gravel, broken or crushed stone$174$534$2,980$20,721 $6,877
Dolomite, whether or not calcined or sintered    $86,508 
Natural magnesium carbonate (magnesite)    $47 
Gypsum; anhydrite; plasters $12,861$22,079$39,664$8,200$10,822
Limestone flux; limestone $5,356    
Quicklime, slaked lime and hydraulic lime$13,958$315$11,937$14,612$10,597$21,927
Portland cement, aluminous cement, slag cement$2,755,949$12,190,435$19,514,478$16,062,983$10,023,492$2,786,454
Asbestos.$619     
Mica, including splitings; mica waste.  $60,150$23,077$56,074$62,733
Natural steatite, whether or not roughly trimmed$1,581 $42$2,077$2,683$496
Felspar; leucite and nepheline syenite  $255$241  
Mineral substances$363$826$807$12,590$43$2,835
Total$2,942,647$12,422,378$20,024,414$16,822,114$10,360,131$3,081,076