|
| TABLE 4 | |||||
| U.S. EXPORTS OF DIATOMITE1, 2 | |||||
| (Thousand metric tons and thousand dollars) | |||||
| Year | Quantity | Value3 � | |||
| 2006 | 150 | 158,000 | 4 | ||
| 2007 | 143 | 60,000 | |||
| 1Harmonized Tariff System (HTS) heading� | |||||
| 2512.00.0000, natural and straight-calcined� | |||||
| grades, but in practice probably includes an | |||||
| undetermined quantity of flux-calcined | |||||
| product HTS heading 3806.90.2000. | |||||
| 2Data are rounded to no more than three | |||||
| significant digits. | |||||
| 3Free alongside ship value. | |||||
| 4All or part of these data have been referred | |||||
| to the U.S. Census Bureau for verification. | |||||
| Source: U.S. Census Bureau. | |||||
Source: United States Geological Survey Mineral Resources Program