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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $561,863 | $671,219 | $973,363 | $1,844,725 | $1,008,523 | $1,815,995 | $1,415,156 |
| Quartzite, crude/roughly trimmed | $6,026,669 | $13,907,711 | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $394,935 | $203,942 | $16,650,373 | $23,515,563 | $24,703,272 | $20,550,662 | $2,297,897 |
| Total | $6,983,467 | $14,782,872 | $17,623,736 | $25,360,288 | $25,711,795 | $22,366,657 | $3,713,053 |
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