Perlite Mined, Processed, And Expanded In The United States

TABLE 1
PERLITE MINED, PROCESSED, AND EXPANDED IN THE UNITED STATES¹

(Thousand metric tons and thousand dollars unless otherwise specified)

		2003	2004	2005	2006	2007
Perlite mined²		591	601	606	516	516
Processed perlite:
Sold to expanders:
Quantity		381	407	406	360	324
Value		14,800	16,700	16,500	15,600	15,000
Average value	dollars per metric ton	38.76	40.93	40.56	43.39	46.15
Us
Quantity		112	101	103	95	85
Value		4,060	3,950	4,200	3,850	3,550
Average value	dollars per metric ton	36.89	39.10	40.75	40.57	41.81
Total, sold and used:
Quantity		493	508	508	454	409
Value		18,800	20,600	20,700	19,500	18,500
Average value	dollars per metric ton	38.20	41.81	40.68	42.90	45.25
Expanded perlite:
Production, quantity		665	673	677	646	577
Sold or used:
Quantity		664	670	677	644	575
Value		147,000	151,000	165,000	165,000	155,000
Average value	dollars per metric ton	221.38	225.98	243.07	255.98	269.23
¹Data are rounded to no more than three significant digits, except average value; may not add to totals shown.
²Crude ore mined and stockpiled for processing.