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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $230 | | $5,001 | $23,209 | $22,735 | $75,485 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | | $216 | | $105 | $549 | $1,181 |
| Total | $230 | $216 | $5,001 | $23,314 | $23,284 | $76,666 |
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