|
Home > Minerals > Crushed Stone >
| TABLE 27 | ||||||||||||||||
| U.S. IMPORTS OF CRUSHED STONE AND CALCIUM CARBONATE FINES, BY TYPE1 | ||||||||||||||||
| 2005 | 2006 | |||||||||||||||
| Quantity | Quantity | |||||||||||||||
| (thousand) | Value, c.i.f.2 | Unit | (thousand) | Value, c.i.f.2 | Unit | |||||||||||
| Type | metric tons) | (thousands) | value | metric tons) | (thousands) | value | ||||||||||
| Crushed stone and chips: | ||||||||||||||||
| Limestone | 7,860 | $59,300 | $7.54 | 9,180 | $72,200 | $7.87 | ||||||||||
| Limestone for flux or cement manufacturing | 4,100 | 38,100 | 9.29 | 3,270 | 32,000 | 9.78 | ||||||||||
| Quartzite | 11 | 2,350 | 213.55 | 21 | 3,090 | 147.14 | ||||||||||
| Other | 8,990 | 93,800 | 10.43 | 7,350 | 98,100 | 13.34 | ||||||||||
| Total or average | 21,000 | 194,000 | XX | 19,800 | 205,000 | XX | ||||||||||
| Calcium carbonate fines:3 | ||||||||||||||||
| Natural chalk | (4) | 21 | 87.87 | (4) | 15 | 66.67 | ||||||||||
| Calcium carbonates, other chalk | 1 | 496 | 597.59 | 1 | 456 | 533.96 | ||||||||||
| Total or average | 1 | 517 | XX | 1 | 471 | XX | ||||||||||
| Grand total or average | 21,000 | 194,000 | XX | 19,800 | 206,000 | XX | ||||||||||
| �XX Not applicable.��� | ||||||||||||||||
| 1Data are rounded to no more than three significant digits, except unit value; may not add to totals shown. | ||||||||||||||||
| 2Cost, insurance, and freight value. | ||||||||||||||||
| 3Excludes precipitated calcium carbonate. | ||||||||||||||||
| 4Less than � unit. | ||||||||||||||||
| Source: U.S. Census Bureau. | ||||||||||||||||
Source: United States Geological Survey Mineral Resources Program