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| TABLE 18 | ||||||||
| CRUSHED SANDSTONE AND QUARTZITE SOLD OR USED BY PRODUCERS IN | ||||||||
| THE UNITED STATES IN 2006, BY USE1, 2 | ||||||||
| (Thousand metric tons and thousand dollars) | ||||||||
| Sandstone | Quartzite | |||||||
| Use | Quantity | Value | Quantity | Value | ||||
| Construction: | ||||||||
| Coarse aggregate (+1� inch): | ||||||||
| Macadam | W | W | 85 | 745 | ||||
| Riprap and jetty stone | 413 | 3,210 | 77 | 975 | ||||
| Filter stone | 81 | 735 | W | W | ||||
| Other coarse aggregate | 461 | 4,280 | 149 | 1,380 | ||||
| Coarse aggregate, graded: | ||||||||
| Concrete aggregate, coarse | 1,150 | 8,760 | 235 | 2,380 | ||||
| Bituminous aggregate, coarse | 920 | 7,300 | 527 | 5,530 | ||||
| Bituminous surface-treatment aggregate | 219 | 1,620 | 422 | 4,720 | ||||
| Railroad ballast | 610 | 2,900 | 186 | 1,750 | ||||
| Other graded coarse aggregate | 1,050 | 9,590 | 962 | 7,700 | ||||
| Fine aggregate (-3/8 inch): | ||||||||
| Stone sand, concrete | 629 | 3,830 | 18 | 166 | ||||
| Stone sand, bituminous mix or seal | 1,060 | 8,680 | 227 | 1,590 | ||||
| Screening, undesignated | 448 | 2,880 | 94 | 740 | ||||
| Other fine aggregate | 768 | 7,310 | 888 | 7,880 | ||||
| Coarse and fine aggregates: | ||||||||
| Graded road base or subbase | 2,480 | 16,600 | 555 | 4,400 | ||||
| Unpaved road surfacing | 50 | 460 | W | W | ||||
| Terrazzo and exposed aggregate | W | W | -- | -- | ||||
| Crusher run or fill or waste | 557 | 3,190 | 525 | 3,160 | ||||
| Other coarse and fine aggregates | 3,400 | 23,100 | 522 | 3,330 | ||||
| Other construction materials | W | W | W | W | ||||
| Agricultural: | ||||||||
| Poultry grit and mineral food | -- | -- | W | W | ||||
| Other agricultural uses | W | W | -- | -- | ||||
| Chemical and metallurgical: | ||||||||
| Cement manufacture | 250 | 977 | 59 | 491 | ||||
| Flux stone | W | W | W | W | ||||
| Other miscellaneous uses: | ||||||||
| Refractory stone (including ganister) | 7 | 45 | -- | -- | ||||
| Porcelain, pottery, and tile | W | W | -- | -- | ||||
| Waste material | W | W | -- | -- | ||||
| Other specified uses not listed | 21 | 155 | W | W | ||||
| Unspecified:3 | ||||||||
| Reported | 10,500 | 83,800 | 7,950 | 59,800 | ||||
| Estimated | 16,200 | 123,000 | 1,510 | 10,400 | ||||
| Total | 41,900 | 322,000 | 15,500 | 122,000 | ||||
| W Withheld to avoid disclosing company proprietary data; included in "Total." -- Zero. | ||||||||
| 1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||
| 2Includes sandstone-quartzite reported with no distinction between the two kinds of stone. | ||||||||
| 3Reported and estimated production without a breakdown by end use. | ||||||||
Source: United States Geological Survey Mineral Resources Program