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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $1,606,757 | $76,154 | $328,023 | $316,806 | $112,959 | $80,924 | $70,996 |
| Quartzite, crude/roughly trimmed | $8,868 | $9,695 | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $64,947 | $10,840 | $235,826 | $292,649 | $150,267 | $422,462 | $322,656 |
| Total | $1,680,572 | $96,689 | $563,849 | $609,455 | $263,226 | $503,386 | $393,652 |
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