Sub-Chapter2005200620072008200920102011
Salt (including table salt)$2,221,538$2,393,472$25,290,676$5,502,986$4,391,830$4,085,630$4,228,591
Unroasted iron pyrites.$8,691    $6,047$3,323
Natural graphite.$3,536 $326 $15,011$20,031$31,433
Natural sands of all kinds$17,640$50,964$24,208$330,278$5,100,799$2,663,963$1,282,975
Quartz (other than natural sands); quartzite$59,366$108,261$35,578$16,180$197$76,401$116,176
Kaolin and other kaolinic clays, whether or not calcined.  $138   $1
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$3,159$762$4,630$28,019$910$14,793$82,710
Chalk.$622$91$243$254$1,675$1,088 
Natural calcium phosphates$247,673 $15,749  $218,694$31
Natural barium sulphate (barytes)$6,703 $218,726  $123,411$127,344
Siliceous fossil meals$198   $20  
Pumice stone; emery; other natural abrasives$15,488$24,894 $1$31,046$252 
Slate $4,673  $51$1,187$13,394
Marble, travertine, ecaussine and other stone $77$166,500$89,030$517,654$657,647$1,314,521
Granite, porphyry, basalt, sandstone and other stone$15,321$3,637$615$3,977$7,424$9,168$3,506
Pebbles, gravel, broken or crushed stone$2,173$12,904$29,748$71$1,399$296$86,400
Natural magnesium carbonate (magnesite)$4,548  $2,354$7,672$15,622$327,206
Gypsum; anhydrite; plasters$232,290$382,474$76,280$69,786$483,905$196,973$281,468
Limestone flux; limestone$5,719 $6,311$2,930$286,075$6,142,038$7,742,286
Quicklime, slaked lime and hydraulic lime$37,910$25,072$38,600$64,323$1,023,515$2,410,153$10,908,858
Portland cement, aluminous cement, slag cement$1,548,866$21,639$9,257,500$19,593,675$12,927,700$24,398,651$22,886,593
Asbestos.   $11 $2,343 
Mica, including splitings; mica waste.$89 $42   $1
Natural steatite, whether or not roughly trimmed  $5$108$32  
Natural borates and concentrates thereof$761      
Felspar; leucite and nepheline syenite$2,998     $10,544
Mineral substances$102,511$7,483$538,480$7,740,993$6,413,919$1,980,561$7,225
Total$4,537,800$3,036,403$35,704,355$33,444,976$31,210,834$43,024,949$49,454,586