Sub-Chapter2005200620072008200920102011
Salt (including table salt)$4,574$1,866$3,062$10,876$5,537$11,079 
Natural sands of all kinds $437  $5,360  
Quartz (other than natural sands); quartzite    $4,602  
Other clays (not including expanded clays of heading 68.06), andalusite, ky ... $2,475$1,104$3,741$2,506  
Chalk.    $12,369  
Natural calcium phosphates $1,500     
Siliceous fossil meals   $2,998   
Pumice stone; emery; other natural abrasives  $4,195 $6,283  
Marble, travertine, ecaussine and other stone$300  $8,576$250  
Granite, porphyry, basalt, sandstone and other stone$3,407$26$1,248 $3  
Pebbles, gravel, broken or crushed stone$4,366$31,753$7,555$42,902$3,852 $1,111
Dolomite, whether or not calcined or sintered $9,183  $644  
Natural magnesium carbonate (magnesite)   $99   
Gypsum; anhydrite; plasters $187 $1,521$5,097  
Quicklime, slaked lime and hydraulic lime    $23  
Portland cement, aluminous cement, slag cement$354,346$4,628$572,972$30,727$162,610  
Natural steatite, whether or not roughly trimmed    $75  
Mineral substances$180$22,611$1,058$2,537$4,970  
Total$367,173$74,666$591,194$103,977$214,181$11,079$1,111