|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Quartz, other than nat. sands | $3,680 | $7,776 | $25,680 | $16,524 |
| Quartzite, crude/roughly trimmed | $418 | $212 | | |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $368 | $4,872 | $4,506 | $29,069 |
| Total | $4,466 | $12,860 | $30,186 | $45,593 |
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