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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $17,941 | $225,996 | $5,707 | $8,409 | $13,112 | $54,922 | $16,910 |
| Quartzite, crude/roughly trimmed | $100,743 | $42,803 | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $27,264 | $8,490 | $34,583 | $58,538 | $30,249 | $35,712 | $18,010 |
| Total | $145,948 | $277,289 | $40,290 | $66,947 | $43,361 | $90,634 | $34,920 |
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