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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $145,613 | $208,678 | $4,014,365 | $499,253 | $22,169 | $12,563 | $26,366 |
| Quartzite, crude/roughly trimmed | $3,114 | | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $288,330 | $75,016 | $192,926 | $133,595 | $86,321 | $79,546 | $44,566 |
| Total | $437,057 | $283,694 | $4,207,291 | $632,848 | $108,490 | $92,109 | $70,932 |
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