Sub-Chapter2005200620072008
Salt (including table salt)$163,553$180,109$182,908$580,433
Unroasted iron pyrites.$9,135   
Natural graphite.$65  $2,101
Natural sands of all kinds$12,358$123,078$41,830$12,753
Quartz (other than natural sands); quartzite  $802$25
Kaolin and other kaolinic clays, whether or not calcined.$317$7,045  
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$2,053$1,756$5,266$3,907
Chalk.$2,278$2,665$1,647$1,477
Natural calcium phosphates   $5,853
Natural barium sulphate (barytes)$11,346 $235 
Pumice stone; emery; other natural abrasives$180$234$6,584$396
Slate$471$6,965$409$28,787
Marble, travertine, ecaussine and other stone$89,748$254,572$269,817$804,235
Granite, porphyry, basalt, sandstone and other stone$71,009$534,959$666,180$565,960
Pebbles, gravel, broken or crushed stone$94,579$249,054$121,703$144,171
Dolomite, whether or not calcined or sintered$2,252$4,183$4,012 
Natural magnesium carbonate (magnesite)$25  $10
Gypsum; anhydrite; plasters$41,683$48,708$67,414$43,708
Limestone flux; limestone$1,947 $37,545$5,804
Quicklime, slaked lime and hydraulic lime$5,414$8,981$20,050$9,810
Portland cement, aluminous cement, slag cement$3,553,817$4,992,043$5,253,393$15,094,813
Asbestos.   $64
Mica, including splitings; mica waste.$162$21$155 
Natural steatite, whether or not roughly trimmed$4,737$3,226$9,108$6,729
Natural borates and concentrates thereof $3,167  
Mineral substances$2,650$1,579$207$2,210
Total$4,069,779$6,422,345$6,689,265$17,313,246