Sub-Chapter200520062007200820092010
Salt (including table salt)$2,836,008$1,389,838$641,639$549,827$446,946$819,025
Natural graphite.$13,736$6,100$6,100   
Natural sands of all kinds$8,766,358$8,179,401$27,518,074$37,746,992$79,480,374$22,936,532
Quartz (other than natural sands); quartzite$7,335,559$10,538,855$16,411,536$5,846,752$53,725$216,109
Kaolin and other kaolinic clays, whether or not calcined.$1,107,045$1,919,615$1,813,363$2,594,121$1,725,736$3,732,754
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$48,519$2,499$86,139$323,519$200,820$103,962
Chalk.  $19,344$1,021 $17,190
Natural calcium phosphates$7,579$12,690$152,886$44,508,658$23,587,560$36,108,218
Natural barium sulphate (barytes)$8,703,197$9,363,881$11,359,674$11,889,174$7,976,957$10,597,648
Siliceous fossil meals$2,040$197,520$16,200$37,125$8,969$460,968
Pumice stone; emery; other natural abrasives   $3,088  
Slate$135,991$21,831$40,072$474,022$2,426,791$1,072,128
Marble, travertine, ecaussine and other stone$1,826,464$1,250,716$2,428,526$2,449,776$3,302,361$5,686,296
Granite, porphyry, basalt, sandstone and other stone$4,027,356$4,566,739$1,302,483$1,576,081$327,264$581,274
Pebbles, gravel, broken or crushed stone$888,432$1,037,510$3,121,875$13,915,626$10,345,705$14,748,178
Dolomite, whether or not calcined or sintered    $9,350$19,238
Natural magnesium carbonate (magnesite)$1,200  $9,130  
Gypsum; anhydrite; plasters$17,154$10,145$11,914$18,425  
Limestone flux; limestone$38,656$174,140$676,238$2,013,761$1,197,346$198,000
Quicklime, slaked lime and hydraulic lime$1,079,482$3,015,964$7,435,779$15,285,594$12,170,891$20,867,863
Portland cement, aluminous cement, slag cement$903,682$4,762,947$3,919,066$3,038,102$10,383,921$96,889,758
Asbestos.    $83,835 
Mica, including splitings; mica waste.$91,989$259,065$511,023$1,932,579$219,342$210,097
Natural steatite, whether or not roughly trimmed$51,709$810$48,790$67,301$100,667$410,647
Natural borates and concentrates thereof    $2,950 
Felspar; leucite and nepheline syenite$7,480 $24,340$120,530$88,774$140,168
Mineral substances$4,831$400,897$125,681$1,532,879$428,732$1,128,384
Total$37,894,467$47,111,163$77,670,742$145,934,083$154,569,016$216,944,437