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| TABLE 2 | ||||||||||||||||||
| EXPANDED PERLITE PRODUCED AND SOLD OR USED BY PRODUCERS IN THE UNITED STATES, BY STATE1 | ||||||||||||||||||
| 2010 | 2011 | |||||||||||||||||
| - | Sold or used | - | Sold or used | |||||||||||||||
| Average | Average | |||||||||||||||||
| Production, | value2 | Production, | value2 | |||||||||||||||
| quantity | Quantity | Value | (dollars per | quantity | Quantity | Value | (dollars per | |||||||||||
| State | (metric tons) | (metric tons) | (thousands) | -metric ton) | (metric tons) | (metric tons) | (thousands) | -metric ton) | ||||||||||
| California | 27,500 | 27,300 | $10,400 | 379 | 26,300 | 25,900 | $10,100 | 388 | ||||||||||
| Florida | 24,900 | 24,700 | 8,250 | 334 | - | 25,500 | 25,400 | 7,900 | 310 | |||||||||
| Michigan | 27,900 | 28,100 | 6,880 | 244 | r | 28,700 | 28,600 | 7,150 | 250 | |||||||||
| Nevada | 12,600 | 12,400 | 5,920 | 475 | r | 13,200 | 31,100 | 5,850 | 446 | |||||||||
| Pennsylvania | 52,600 | 52,600 | 12,300 | 233 | 41,000 | 41,000 | 9,390 | 229 | ||||||||||
| Other3 | 327,000 | 326,000 | 99,300 | 305 | 342,000 | 323,000 | 100,000 | 309 | ||||||||||
| Total or average | 472,000 | 471,000 | 143,000 | 304 | 477,000 | 475,000 | 140,000 | 295 | ||||||||||
| rRevised. | ||||||||||||||||||
| 1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||||||||||||
| 2Average value is based on unrounded data and is rounded to the nearest dollar. | ||||||||||||||||||
| 3Includes Arizona, Arkansas, Colorado, Georgia, Idaho, Illinois, Indiana, Louisiana, Maine, Massachusetts, Minnesota, Mississippi, Missouri, | ||||||||||||||||||
| New Jersey (2011), North Carolina, Ohio, Oklahoma, Oregon, Tennessee, Texas, Wisconsin, and Wyoming. | ||||||||||||||||||
Source: United States Geological Survey Mineral Resources Program
See also: Mineral commodity prices