Sub-Chapter20062007200820092010
Salt (including table salt)$29,663,373$31,944,665$21,828,610$24,993,257$33,781,749
Unroasted iron pyrites.   $95,441 
Natural graphite.$602,319$311,830$146,412$360,498$248,711
Natural sands of all kinds$976,687$659,546$1,039,007$2,158,759$2,930,455
Quartz (other than natural sands); quartzite$18,649$280,182$1,029,875$413,790$965,344
Kaolin and other kaolinic clays, whether or not calcined. $169,219$561,527$519,062$741,037
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...$2,173,294$3,679,047$2,748,999$2,148,123$2,380,991
Chalk.$56,482$54,608$17,063$38,754 
Natural calcium phosphates$16,472   $1
Natural barium sulphate (barytes)$16,859$1,295,791$20,391$6,045$23,898
Siliceous fossil meals$1,741,324$1,944,557$3,085,389$3,247,539$1,784,925
Pumice stone; emery; other natural abrasives$29,343$21,823$88,736$21,028$1,731
Marble, travertine, ecaussine and other stone$1,217,067$1,491,850$2,958,906$2,693,236$1,525,589
Granite, porphyry, basalt, sandstone and other stone$1,185,083$3,919,624$5,655,778$19,892,980$10,365,656
Pebbles, gravel, broken or crushed stone$127,588$300,490$458,246$663,678$539,725
Dolomite, whether or not calcined or sintered$54,140$52,869$71,775$38,986 
Natural magnesium carbonate (magnesite)$1,729,878$1,356,619$494,496$462,045$145,675
Gypsum; anhydrite; plasters$19,497,293$12,908,215$19,578,643$54,755,085$32,362,106
Limestone flux; limestone$20,981 $377,019$2,775,229$101,606
Quicklime, slaked lime and hydraulic lime$1,266,157$5,605,557$2,755,017$3,163,283$2,572,058
Portland cement, aluminous cement, slag cement$286,037,688$495,591,030$439,393,150$322,391,049$468,490,638
Asbestos.$1,660,974$3,066,726$1,288,352$1,895,872$331,251
Mica, including splitings; mica waste.$634,663$413,911$396,207$73,279$558,879
Natural steatite, whether or not roughly trimmed$3,283,501$2,995,680$2,868,563$4,533,910$7,198,368
Natural borates and concentrates thereof$4,731   $17,827
Felspar; leucite and nepheline syenite$16,762    
Mineral substances$574,427$1,238,548$604,648$386,108$181,075
Total$352,605,735$569,302,387$507,466,809$447,727,036$567,249,295