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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $62,217 | $122,332 | $46,531 | $87,055 | $23,432 | $115,677 | $73,988 |
| Quartzite, crude/roughly trimmed | | $9,911 | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $16,372 | $156,452 | $54,140 | $97,978 | $26,553 | $51,886 | $16,011 |
| Total | $78,589 | $288,695 | $100,671 | $185,033 | $49,985 | $167,563 | $89,999 |
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