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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Quartz, other than nat. sands | $227,847 | $177,252 | $162,006 | $182,343 | $85,706 | $55,237 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $102 | $4,032 | $7,672 | | $7,040 | $6,568 |
| Total | $227,949 | $181,284 | $169,678 | $182,343 | $92,746 | $61,805 |
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