Sub-Chapter200520062007200820092010
Salt (including table salt)$95$46 $492$6,000$8
Natural graphite.    $119 
Natural sands of all kinds$49,780$105,591$100,001$139,267$386,538$314,621
Quartz (other than natural sands); quartzite$1    $16,787
Kaolin and other kaolinic clays, whether or not calcined.$85,678$151,667$1,088   
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$342,486$306,788$483,699$278,298$272,574$205,366
Siliceous fossil meals $3,242$300 $2,202 
Pumice stone; emery; other natural abrasives   $37$3,280 
Slate$300     
Marble, travertine, ecaussine and other stone $2,598$1,366$74,693$20,086$27,724
Granite, porphyry, basalt, sandstone and other stone$86,553$113,603$396,958$345,296$184,068$180,495
Pebbles, gravel, broken or crushed stone $12,667$344$140,413$88,924$83,334
Dolomite, whether or not calcined or sintered$24,840$60,720$121,095 $255 
Gypsum; anhydrite; plasters$67,872$257,585$128,937$146,771$23,459$309,536
Limestone flux; limestone $29$30$6,832$29 
Quicklime, slaked lime and hydraulic lime $60  $12,102 
Portland cement, aluminous cement, slag cement$17,713,518$28,779,561$64,002,344$80,075,325$22,438,176$5,569,324
Natural steatite, whether or not roughly trimmed $1 $10  
Felspar; leucite and nepheline syenite $1    
Mineral substances$90,335$59,288$28,798$102,630$59,680$163,051
Total$18,461,458$29,853,447$65,264,960$81,310,064$23,497,492$6,870,246