Sub-Chapter20062007200820092010
Salt (including table salt) $66,070 $6,809$254,481
Unroasted iron pyrites. $133   
Natural graphite.  $77,837  
Natural sands of all kinds$240  $237,470$66,681
Quartz (other than natural sands); quartzite   $12,362 
Kaolin and other kaolinic clays, whether or not calcined.  $2,711  
Other clays (not including expanded clays of heading 68.06), andalusite, ky ... $4,967 $125 
Natural calcium phosphates   $38,674 
Natural barium sulphate (barytes)  $4,381 $6,006
Siliceous fossil meals $23,640   
Pumice stone; emery; other natural abrasives $940 $19,651 
Granite, porphyry, basalt, sandstone and other stone $302  $198,210
Pebbles, gravel, broken or crushed stone  $16,019$4,150$2,008,705
Dolomite, whether or not calcined or sintered $3,469   
Natural magnesium carbonate (magnesite)   $18,039 
Gypsum; anhydrite; plasters $316,897   
Limestone flux; limestone  $11,034  
Portland cement, aluminous cement, slag cement $3,713,092$5,476,744$6,530,594$3,796,661
Mica, including splitings; mica waste. $1,241,092  $559,512
Felspar; leucite and nepheline syenite $73,442   
Mineral substances$366    
Total$606$5,444,044$5,588,726$6,867,874$6,890,256