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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | | $2,461 | $25,912 | $1,003 | | $43,966 | $3,752 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $298 | | $47,382 | $1,249 | $16,549 | $26,624 | $63,349 |
| Total | $298 | $2,461 | $73,294 | $2,252 | $16,549 | $70,590 | $67,101 |
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