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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $3,190,232 | $2,394,594 | $3,032,906 | $1,530,310 | $1,920,306 | $3,760,549 | $8,185,838 |
| Quartzite, crude/roughly trimmed | $12,686 | | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $1,499,564 | $955,345 | $341,463 | $359,263 | $440,492 | $1,181,415 | $6,165,771 |
| Total | $4,702,482 | $3,349,939 | $3,374,369 | $1,889,573 | $2,360,798 | $4,941,964 | $14,351,609 |
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