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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $7,534,000 | $9,217,000 | $10,180,000 | $11,338,000 | $7,182,000 | $9,887,274 | $11,637,538 |
| Quartzite, crude/roughly trimmed | $618,000 | $775,000 | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $853,000 | $4,504,000 | $3,074,000 | $7,347,000 | $5,759,000 | $9,027,338 | $12,764,698 |
| Total | $9,005,000 | $14,496,000 | $13,254,000 | $18,685,000 | $12,941,000 | $18,914,612 | $24,402,236 |
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