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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $28,592 | $1,459 | $28,773 | $52,867 | $2,739 | $114,822 | $1,427 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | | | $5,526 | | | | |
| Total | $28,592 | $1,459 | $34,299 | $52,867 | $2,739 | $114,822 | $1,427 |
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