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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $1,550 | $1,211 | $2,809 | $677 | $40 | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | | | | | $845 | $2,623 | $14,025 |
| Total | $1,550 | $1,211 | $2,809 | $677 | $885 | $2,623 | $14,025 |
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