Sub-Chapter2005200620072008200920102011
Salt (including table salt)$148,420$212,439$301,284$252,243$354,169$473,575$354,560
Unroasted iron pyrites.$1,210$3,881$9,384$511   
Natural sands of all kinds$16,530$12,560$1 $125$679$661
Quartz (other than natural sands); quartzite$9,060$1,123$1,911    
Kaolin and other kaolinic clays, whether or not calcined.    $106 $500
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$21,230$2,893 $220$66,695$100,624$131,578
Natural barium sulphate (barytes)$769,330$545,378$794,841$960,158$218,318$780,644$2,429,013
Pumice stone; emery; other natural abrasives$1,220$250 $600$1,120  
Slate$75,770$47,481$59,004$71,185$40,329$3,051$29,669
Marble, travertine, ecaussine and other stone$7,040$9,260$13,915$6,637$5,403$8,541$11,767
Granite, porphyry, basalt, sandstone and other stone$164,680$61,506$70,898$4,747$72,548$49,912$600
Pebbles, gravel, broken or crushed stone $107,797$93,390    
Gypsum; anhydrite; plasters$1,360$25,691$224,763$280,228$105,965$46,169$72,966
Quicklime, slaked lime and hydraulic lime     $509 
Portland cement, aluminous cement, slag cement$28,290$432,381$163,010$121,946$6,651$100,611$154,508
Natural steatite, whether or not roughly trimmed      $268
Natural borates and concentrates thereof$6,146,390$4,798,865$8,337,247$10,202,456$13,762,112$15,578,646$26,856,255
Mineral substances$860$45$5 $105,600$46,522$4,717
Total$7,391,390$6,261,550$10,069,653$11,900,931$14,739,141$17,189,483$30,047,062