|
| TABLE 3 | |||||
| AVERAGE VALUE PER METRIC TON OF DIATOMITE, | |||||
| BY MAJOR USE1 | |||||
| 2005 | 2006 | ||||
| Absorbents | $31.00 | $37.00 | |||
| Cement | NA | 3.00 | 2 | ||
| Fillers | 382.00 | 395.00 | |||
| Filtration | 262.00 | 264.00 | |||
| Insulation | 44.00 | 44.00 | |||
| Other3 | 652.00 | 932.00 | |||
| Weighted average | 274.00 | 220.00 | |||
| NA not available. | |||||
| 1Rounded estimates. | |||||
| 2As ingredients in portland cement, not reported as a separate�� | |||||
| use in 2005. | |||||
| 3Includes abrasives, lightweight aggregates and unspecified uses. | |||||
Source: United States Geological Survey Mineral Resources Program