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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $544,690 | $713,524 | $1,310,096 | $1,033,475 | $856,325 | $3,273,238 | $3,891,162 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $213,707 | $227,730 | $18,145 | $31,276 | $2,651,496 | $2,389,240 | $1,575,774 |
| Total | $758,397 | $941,254 | $1,328,241 | $1,064,751 | $3,507,821 | $5,662,478 | $5,466,936 |
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