Sub-Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
Salt (including table salt) | $125,575 | $35,658 | $102,432 | $904,576 | $494,967 | $722,267 |
Unroasted iron pyrites. | | $1,533 | $65,238 | $8,629 | | |
Natural graphite. | | | $531 | $956 | $48 | $2,227 |
Natural sands of all kinds | $378 | $273 | $4,161 | $2,199 | $385 | $40,474 |
Quartz (other than natural sands); quartzite | | | $1,204 | | $150 | $220 |
Kaolin and other kaolinic clays, whether or not calcined. | | $239 | | $847 | | $25,712 |
Other clays (not including expanded clays of heading 68.06), andalusite, ky ... | $101 | $1,173 | $23,041 | $4,497 | $17,524 | $4,260 |
Chalk. | | $167 | $37 | $61 | $2,271 | $1,528 |
Natural calcium phosphates | | $10 | $28,127 | $54,138 | $34,764 | $40,145 |
Natural barium sulphate (barytes) | | | | | | $80,997 |
Siliceous fossil meals | | | $208 | | | |
Pumice stone; emery; other natural abrasives | $813 | | $2,342 | $1,603 | $447,802 | $2,957 |
Slate | | | | $2,000 | | |
Marble, travertine, ecaussine and other stone | | | $25,669 | | | $161 |
Granite, porphyry, basalt, sandstone and other stone | $377 | $1,046 | $3,479 | $11,446 | $3,428 | $4,691 |
Pebbles, gravel, broken or crushed stone | $12,450 | | $43,448 | $1,595 | $1,458 | $10,012 |
Natural magnesium carbonate (magnesite) | $1 | | $3,250 | | | $50 |
Gypsum; anhydrite; plasters | | $77 | $750 | $3,465 | $583 | |
Limestone flux; limestone | | $1,605 | $793 | $733 | $10,608 | $12,313 |
Quicklime, slaked lime and hydraulic lime | $203 | $13 | $16,759 | $6,760 | $956 | $6,543 |
Portland cement, aluminous cement, slag cement | $2,997,297 | $5,919,868 | $20,083,712 | $77,888,447 | $83,172,565 | $72,246,307 |
Asbestos. | | | | $9,117 | $24,420 | $2,286 |
Mica, including splitings; mica waste. | | | $740 | $100 | $800 | $7,823 |
Natural steatite, whether or not roughly trimmed | $830 | $313 | | $677 | $26,643 | $62,271 |
Natural borates and concentrates thereof | $21,343 | $4,209 | | | $2,081 | $5,495 |
Mineral substances | $713,823 | $619,167 | $214,530 | $67,041 | $10,117 | $1,598,626 |
Total | $3,873,191 | $6,585,351 | $20,620,451 | $78,968,887 | $84,251,570 | $74,877,365 |
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