Sub-Chapter2005200620072008200920102011
Salt (including table salt)$33,498$1,614$223$37,974$22  
Natural graphite.$1,336$318$187    
Natural sands of all kinds$1,018,704$693,581$889,612$899,994$1,304,309$1,544,820$1,815,434
Kaolin and other kaolinic clays, whether or not calcined.  $1    
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$17,375$27,195$38,232$42,193$32,417$62,761$126,384
Chalk.    $12  
Siliceous fossil meals $1     
Pumice stone; emery; other natural abrasives$3,594      
Marble, travertine, ecaussine and other stone$10$25$5    
Granite, porphyry, basalt, sandstone and other stone $300  $992 $468,026
Pebbles, gravel, broken or crushed stone$145$513$170,165$24,235$551,716$971$391
Dolomite, whether or not calcined or sintered$80$120     
Natural magnesium carbonate (magnesite)   $29   
Limestone flux; limestone  $15   $4,457
Quicklime, slaked lime and hydraulic lime$21,986      
Portland cement, aluminous cement, slag cement$808$155,581$10$1,126$73$188,994$910,153
Asbestos.$3      
Mineral substances $1$124 $15$2,734$659
Total$1,097,539$879,249$1,098,574$1,005,551$1,889,556$1,800,280$3,325,504