Commodity20052006200720082009
Quartz, other than nat. sands$1,565$2,352$3,175$2,145$4,938
Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... $980$492$453$399
Total$1,565$3,332$3,667$2,598$5,337