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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $1,616,163 | $1,462,898 | $1,582,789 | $1,898,472 | $1,372,950 | $1,135,566 | $1,507,450 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $1,940 | $608 | | | $6,898 | $13,447 | $9,271 |
| Total | $1,618,103 | $1,463,506 | $1,582,789 | $1,898,472 | $1,379,848 | $1,149,013 | $1,516,721 |
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