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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $22,085 | $11,822 | $26,588 | $21,454 | $5,261 | $71,830 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | | $8,152 | $505,824 | | | $183,547 |
| Total | $22,085 | $19,974 | $532,412 | $21,454 | $5,261 | $255,377 |
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