Sub-Chapter200520062007200820092010
Salt (including table salt)$10,689,434$13,264,742$25,414,104$40,091,102$30,904,329$28,568,059
Unroasted iron pyrites. $173  $98 
Natural graphite.$2,125$2,780$6,003$54$679$916
Natural sands of all kinds$6,639$3,172$30,067$904$13,171$11,859
Quartz (other than natural sands); quartzite $1,126$122,404 $2,069$753
Kaolin and other kaolinic clays, whether or not calcined.$42,587$64,807$80,522$362,916$326,900$1,206,460
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$39,303$22,990$255,595$26,407$37,428$66,466
Chalk.$153,431$127,433$270,326$473,812$275,020$230,124
Natural calcium phosphates$10,000$15,646$39,278$5,401$13,000$7,141
Natural barium sulphate (barytes)$10,627$165,318$254,419$141,352$90,662$19,410
Siliceous fossil meals$107,746$116,326$92,566$111,632$173,150$108,391
Pumice stone; emery; other natural abrasives$944$1,143$3,939  $1,962
Slate$72,278$68,960$76,230$21,178$1,158$328
Marble, travertine, ecaussine and other stone$10,532$11,757$60,161$51,017$42,254$18,345
Granite, porphyry, basalt, sandstone and other stone$28,113$45,451$73,973$121,232$44,919$42,048
Pebbles, gravel, broken or crushed stone$157,844$279,847$371,415$235,981$207,393$174,664
Dolomite, whether or not calcined or sintered$83,144$66,690$8,127$156,463$3,644$36,545
Natural magnesium carbonate (magnesite)$18,090$6,386$4,824$12,968$14,157$14,126
Gypsum; anhydrite; plasters$745,525$772,360$1,192,523$543,741$385,856$1,264,220
Limestone flux; limestone$375,033$961,919$1,356,290$988,448$139,428$19,706
Quicklime, slaked lime and hydraulic lime$1,152,920$1,277,355$1,246,732$1,048,752$1,558,551$2,089,290
Portland cement, aluminous cement, slag cement$38,256,241$55,239,350$74,404,419$117,175,681$104,546,506$94,638,157
Asbestos.$401 $15,012$541  
Mica, including splitings; mica waste.$348$220 $36$78 
Natural steatite, whether or not roughly trimmed$16,382$26,957$21,414$16,941$230,882$35,249
Natural borates and concentrates thereof  $1,256$3,955$334$1,647
Felspar; leucite and nepheline syenite$16,002,243$15,792,398$14,314,868$31,771,994$1,979,609$9,163,336
Mineral substances$2,270,892$35,234$684$4,951$42,961$3,784
Total$70,252,822$88,370,540$119,717,151$193,367,459$141,034,236$137,722,986