Sub-Chapter20052006200720082010
Salt (including table salt)$1,255,112$1,448,327$2,251,603$6,865,320$6,822,253
Natural graphite.  $82,206  
Natural sands of all kinds$6,390$5,744$51,241$6,767$69,279
Quartz (other than natural sands); quartzite    $1,034
Kaolin and other kaolinic clays, whether or not calcined.  $2,211$3,033$11,773
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$22,307$126,889$117,695$134,026$129,844
Chalk.$606,790$630,144$719,005$834,249$1,879,368
Natural calcium phosphates $10,539 $12,574 
Natural barium sulphate (barytes) $907$7,413$25,506$76,452
Siliceous fossil meals$19,569$15,150$42,285$92,987$678,325
Pumice stone; emery; other natural abrasives  $2,144  
Slate  $4,310 $8,936
Marble, travertine, ecaussine and other stone   $71,030$535,047
Granite, porphyry, basalt, sandstone and other stone  $311$27,928 
Pebbles, gravel, broken or crushed stone$37,206$3,412$29,016$3,955$57,603
Dolomite, whether or not calcined or sintered$1,480$13,273$44,469$99,011$1,555,209
Natural magnesium carbonate (magnesite) $11,160$4,871 $214,281
Gypsum; anhydrite; plasters$348,419$384,382$403,772$763,641$1,351,998
Limestone flux; limestone$86,037$56,762$65,592$82,681$3,106
Quicklime, slaked lime and hydraulic lime$4,284,488$5,385,465$7,184,198$10,163,603$5,659,947
Portland cement, aluminous cement, slag cement$81,673,623$78,879,994$115,182,386$175,593,032$185,292,832
Asbestos.    $21,604
Mica, including splitings; mica waste.$13,655$71   
Natural steatite, whether or not roughly trimmed$5,346$20,264$71,147$59,499$65,185
Natural borates and concentrates thereof  $16,311$77,721$18,173
Felspar; leucite and nepheline syenite$2,655  $562$119
Mineral substances$1,214,862$1,179,651$931,984$4,277,211$3,012,648
Total$89,577,939$88,172,134$127,214,170$199,194,336$207,465,016