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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $77,579 | $103,435 | $142,424 | $77,137 | $73,040 | $45,351 | $70,860 |
| Quartzite, crude/roughly trimmed | $1,778 | $1,207 | | | | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $49,668 | $16,861 | $1,799 | $2,640 | $8,786 | $28,973 | $35,175 |
| Total | $129,025 | $121,503 | $144,223 | $79,777 | $81,826 | $74,324 | $106,035 |
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