Sub-Chapter200520062010
Salt (including table salt)$1,281,721$1,925,630$3,463,677
Natural sands of all kinds$38,190$33,263$39,775
Quartz (other than natural sands); quartzite$607$2,059 
Kaolin and other kaolinic clays, whether or not calcined.$43$2,321$8,710
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$118,093$90,069$71,377
Chalk.$97,347$139,533$139,853
Natural calcium phosphates $861$162
Natural barium sulphate (barytes) $3,582 
Siliceous fossil meals$152,448$115,954$156,084
Pumice stone; emery; other natural abrasives$12,214$14,068$16
Marble, travertine, ecaussine and other stone$1,915,299$2,929,753$15,652
Granite, porphyry, basalt, sandstone and other stone$1,535$10,875$1,715
Pebbles, gravel, broken or crushed stone$6,731$10,685$9,574
Natural magnesium carbonate (magnesite)$256$629 
Gypsum; anhydrite; plasters$2,002,652$1,512,364$3,069,365
Limestone flux; limestone$9,063  
Quicklime, slaked lime and hydraulic lime$95,699$179,139$168,928
Portland cement, aluminous cement, slag cement$41,878,045$45,022,189$45,657,657
Mica, including splitings; mica waste.$2,368$476 
Natural steatite, whether or not roughly trimmed$472$17,636$8,805
Natural borates and concentrates thereof  $2,904
Mineral substances$40,283$33,165$73,829
Total$47,653,066$52,044,251$52,888,083