|
| TABLE 4 | ||||||||
| BENTONITE SOLD OR USED BY PRODUCERS IN THE UNITED STATES, | ||||||||
| BY TYPE AND USE1 | ||||||||
| (Thousand metric tons and thousand dollars) | ||||||||
| 2005 | 2006 | |||||||
| Quantity | Value | Quantity | Value | |||||
| Type: | ||||||||
| Nonswelling | 300 | 14,400 | 260 | 11,800 | ||||
| Swelling | 4,410 | ##### | 4,680 | ##### | ||||
| Total | 4,710 | ##### | 4,940 | ##### | ||||
| Use: | ||||||||
| Domestic: | ||||||||
| Pet waste absorbents | 1,240 | NA | 1,060 | NA | ||||
| Adhesives | 2 | NA | 6 | NA | ||||
| Animal feed | 53 | NA | 110 | NA | ||||
| Drilling mud | 945 | NA | 1,030 | NA | ||||
| Filler and extender applications2 | 61 | NA | 69 | NA | ||||
| Foundry sand | 893 | NA | 672 | NA | ||||
| Pelletizing (iron ore)3 | 579 | NA | 662 | NA | ||||
| Waterproofing and sealing | 176 | NA | 162 | NA | ||||
| Miscellaneous civil engineering | 316 | NA | 313 | NA | ||||
| Miscellaneous4 | 40 | r | NA | 40 | NA | |||
| Total | 4,310 | NA | 4,120 | NA | ||||
| Exports: | ||||||||
| Drilling mud | 76 | NA | 120 | NA | ||||
| Foundry sand | 205 | NA | 267 | NA | ||||
| Other5 | 123 | NA | 432 | NA | ||||
| Total | 404 | NA | 819 | NA | ||||
| Grand total | 4,710 | ##### | 4,940 | ##### | ||||
| rRevised. NA Not available.� | ||||||||
| 1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||
| 2Includes asphalt tiles, cosmetics, fertilizers, ink, medical, miscellaneous fillers and | ||||||||
| extenders applications, paint, paper coating, paper filling, pesticides and related | ||||||||
| products, pharmaceuticals, and plastics. | ||||||||
| 3Excludes shipments to Canada. Total sales in North America were 595,000 metric tons | ||||||||
| (t) in 2005 and 730,000 metric tons (t) in 2006. | ||||||||
| 4Includes ceramics, chemical manufacturing, clarifying and decolorizing, heavy clay | ||||||||
| products, oil and grease absorbents, refractories, and other unknown uses. | ||||||||
| 5Includes absorbents, fillers and extenders, refractories, pelletizing, and other unknown | ||||||||
| uses. | ||||||||
Source: United States Geological Survey Mineral Resources Program