|
| TABLE 6 | ||||||||
| FIRE CLAY SOLD OR USED BY PRODUCERS IN THE UNITED STATES, BY USE1 | ||||||||
| (Thousand metric tons and thousand dollars) | ||||||||
| 2005 | 2006 | |||||||
| Quantity | Value | Quantity | Value | |||||
| Production | 353 | #### | 848 | #### | ||||
| Use: | ||||||||
| Heavy clay products and lightweight aggregates | 190 | NA | 609 | NA | ||||
| Refractories: | ||||||||
| Firebrick, block, shapes | -- | NA | 3 | NA | ||||
| Grogs and calcines | �-- | NA | 140 | NA | ||||
| Other refractories3 | 163 | NA | 46 | NA | ||||
| Miscellaneous4 | -- | NA | 50 | NA | ||||
| Total | 353 | #### | 848 | #### | ||||
| NA Not available. -- Zero. | ||||||||
| 1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||
| 2Includes common brick, concrete block, portland cement, and structural concrete. | ||||||||
| 3Includes kiln furniture, mortar and cement, and miscellaneous refractories. | ||||||||
| 4Includes floor tile, wall tile, and other unknown uses. | ||||||||
Source: United States Geological Survey Mineral Resources Program