Sub-Chapter200520062007200820092010
Salt (including table salt)$314,712$284,538$4,622,802$10,406,682$3,333,757$7,078,424
Unroasted iron pyrites.$463 $3,285 $913$4,821
Natural graphite.$9,922$14,022$6,625$62,656$35,626$77,581
Natural sands of all kinds$98,779$83,198$83,578$1,588,932$1,029,258$617,171
Quartz (other than natural sands); quartzite$50,101$77,907$238,017$201,850$130,409$218,023
Kaolin and other kaolinic clays, whether or not calcined.$550,906$375,656$240,410$430,998$312,623$420,468
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$541,964$804,151$931,726$1,018,370$1,169,263$1,812,775
Chalk.$8,205$7,787$42,138$12,308$42,776$9,893
Natural calcium phosphates$342,583$19,056$573,221$240,217$487,084$228,374
Natural barium sulphate (barytes)$64,646$70,410$151,010$105,348$59,534$61,025
Siliceous fossil meals$4,637$6,049$1,193 $70,506$2,004
Pumice stone; emery; other natural abrasives$59,524$102,147$15,562  $5,289
Slate   $8,660 $38,898
Marble, travertine, ecaussine and other stone$144,632$100,087$471,710$39,881$14,004$114,068
Granite, porphyry, basalt, sandstone and other stone$30,745$51,779$309,505$191,477$184,100$290,324
Pebbles, gravel, broken or crushed stone$115,086$48,726$52,499$100,626$99,097$92,495
Dolomite, whether or not calcined or sintered  $8,526 $3,400$413
Natural magnesium carbonate (magnesite)$55,143$21,766$118,694$104,551$173,241$199,986
Gypsum; anhydrite; plasters$216,817$1,021,444$1,769,978$2,657,743$1,900,250$3,793,339
Limestone flux; limestone $2,272$653 $2,556$690
Quicklime, slaked lime and hydraulic lime$3,881$8,537$2,168$215$4,125$45,667
Portland cement, aluminous cement, slag cement$11,953,105$12,488,739$57,013,828$55,035,283$46,226,836$68,915,256
Asbestos.$17,879$7,982$6,901$16,242$6,353$1,601
Mica, including splitings; mica waste.$34,631$19,050$8,002$19,848$3,441$60,240
Natural steatite, whether or not roughly trimmed$941,851$840,611$657,791$687,968$532,888$633,839
Natural borates and concentrates thereof$10,233$7,646$1,520$9,300$14,581$27,087
Felspar; leucite and nepheline syenite$1,250$96,132$7,283$7,100$3,061$13,134
Mineral substances$296,496$207,005$258,359$71,310$16,830$38,758
Total$15,868,191$16,766,697$67,596,984$73,017,565$55,856,512$84,801,643