Sub-Chapter200520062007200820092010
Salt (including table salt)$449,175$329,623$529,767$913,813$427,516$455,377
Unroasted iron pyrites.     $1,166
Natural graphite.$1,851$1,432$3,429$72,289$97,121$34,598
Natural sands of all kinds$386,681$536,635$522,516$778,374$1,051,528$304,521
Quartz (other than natural sands); quartzite$1,565$3,332$3,667$2,598$5,337 
Kaolin and other kaolinic clays, whether or not calcined.$70,926$47,451$84,074$63,479$62,994$30,134
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$506,040$227,120$160,944$257,439$238,508$440,463
Chalk.$40,740$58,584$45,601$242,845$150,226$134,869
Natural calcium phosphates$589$742  $1,311$2,848
Natural barium sulphate (barytes)$11,193$11,003$7,511$7,820$5,459$7,258
Siliceous fossil meals$32,607$23,994$39,947$53,610$33,969$46,996
Pumice stone; emery; other natural abrasives$131,603$96,354$45,789$4,346$5,624$13,219
Slate $2,507$53,666 $20,237$7,259
Marble, travertine, ecaussine and other stone$549,219$757,675$1,317,754$638,490$263,915$507,671
Granite, porphyry, basalt, sandstone and other stone$962,478$449,793$1,134,865$1,217,563$1,101,613$706,253
Pebbles, gravel, broken or crushed stone$739,850$696,370$1,317,788$1,212,741$1,648,162$1,545,507
Dolomite, whether or not calcined or sintered$17,998$16,860$19,053$35,018$43,655$14,014
Natural magnesium carbonate (magnesite)$155,166$114,811$68,163$24,728$15,803$89,145
Gypsum; anhydrite; plasters$1,390,430$1,388,552$2,018,992$1,108,292$635,274$1,912,229
Limestone flux; limestone$947$24,120$29,263 $60,225$265
Quicklime, slaked lime and hydraulic lime$134,193$180,886$179,520$277,623$93,755$88,244
Portland cement, aluminous cement, slag cement$17,705,494$23,185,105$27,956,630$34,032,774$27,522,371$23,628,502
Mica, including splitings; mica waste.$33,213$50,833$38,887$34,294$68,744$20,213
Natural steatite, whether or not roughly trimmed$119,956$117,910$92,630$172,182$141,694$403,480
Natural borates and concentrates thereof $15 $369$981 
Felspar; leucite and nepheline syenite$2,461$2,064$12,327$1,320$12,024$22,293
Mineral substances$308,356$312,563$469,524$422,325$483,547$269,168
Total$23,752,731$28,636,334$36,152,307$41,574,332$34,191,593$30,685,692