Sub-Chapter20052006200720082009
Salt (including table salt) $8,118$39,231 $723
Natural sands of all kinds$3,178$3,292$14,772$12,196$27,633
Kaolin and other kaolinic clays, whether or not calcined.   $80 
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$37,854$28,178$60,577$33,274$301,602
Chalk.   $764 
Natural calcium phosphates    $139
Natural barium sulphate (barytes)$38,368$55,928$48,347 $60,774
Siliceous fossil meals$29,832$1,787  $1,452
Pumice stone; emery; other natural abrasives   $70 
Granite, porphyry, basalt, sandstone and other stone$6,349  $37 
Pebbles, gravel, broken or crushed stone$28$595$615$90$53
Dolomite, whether or not calcined or sintered   $2 
Quicklime, slaked lime and hydraulic lime $6,576  $201,410
Portland cement, aluminous cement, slag cement$3,234,809$789,850$365,300$717,129$804,920
Asbestos.   $5 
Natural steatite, whether or not roughly trimmed$1,260    
Felspar; leucite and nepheline syenite $334  $221
Mineral substances$1,484$603$1,517$256 
Total$3,353,162$895,261$530,359$763,903$1,398,927