Sub-Chapter2005200620072008200920102011
Salt (including table salt)$14,733,000$16,569,000$18,167,000$20,935,000$17,939,000$21,423,000$24,525,000
Natural graphite.  $48,000  $41,000 
Natural sands of all kinds$2,601,000$1,898,000$2,880,000$2,558,000$1,944,000$2,188,000$1,945,000
Quartz (other than natural sands); quartzite$27,000$497,000$1,294,000$449,000$541,000$3,529,000$3,405,000
Kaolin and other kaolinic clays, whether or not calcined.$100,000     $6,000
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...   $117,000$217,000$78,000$7,000
Chalk.   $10,000   
Natural calcium phosphates$54,325,000$22,551,000$22,063,000$161,958,000$74,256,000$81,526,000$95,999,000
Natural barium sulphate (barytes) $2,000$8,000$2,000$4,000$5,000 
Siliceous fossil meals$3,000   $1,000  
Pumice stone; emery; other natural abrasives   $224,000$147,000$58,000$104,000
Slate   $8,000   
Marble, travertine, ecaussine and other stone$2,625,000$3,561,000$2,969,000$1,733,000$726,000$442,000$1,787,000
Granite, porphyry, basalt, sandstone and other stone$22,000$20,000$532,000$154,000$21,000$1,230,000$1,666,000
Pebbles, gravel, broken or crushed stone$74,000$31,000$422,000$365,000$135,000$196,000$192,000
Natural magnesium carbonate (magnesite)$960,000$13,929,000$10,056,000$13,463,000$17,518,000$45,254,000$75,962,000
Gypsum; anhydrite; plasters$33,000$195,000$305,000$107,000$16,000$301,000$79,000
Limestone flux; limestone     $10,000 
Quicklime, slaked lime and hydraulic lime $7,000$22,000  $1,000$3,000
Portland cement, aluminous cement, slag cement$14,748,000$21,211,000$19,984,000$23,919,000$4,072,000$893,000$322,000
Mica, including splitings; mica waste.      $9,000
Natural steatite, whether or not roughly trimmed $7,000 $16,000 $1,000 
Natural borates and concentrates thereof  $87,000  $2,000 
Mineral substances$85,000$127,000$103,000$2,496,000$106,000$234,000$102,000
Total$90,336,000$80,605,000$78,940,000$228,514,000$117,643,000$157,412,000$206,113,000