Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Minor nonmetals, pp. 1359-1370 PDF (1.3 MB)
1359Minor Nonmetals By Staff, Division of Nonmetallic Minerals CONTENTS Page - Greensand - 1319 Iodine 1359 Lithium 1362 Meerschaum 1365 Page Quartz crystal 1365 Staurolite 1367 Strontium 1367 Wollastonite 1369 GREENSAND 1 Greensand (glauconite, essentially a hydrous silicate of iron and potassium) was produced in 1972 only by Inversand Co., Clayton, N.J. Production and sales data are withheld to avoid disclosure of company confidential data. However, it may be of interest to know that the average annual production for the period 1967 to 1971 was 3,437 tons valued at $233,000. During this period, there were two producers of greensand. Greensand was used by various water treatment manufacturers. A cooperative agreement between the Bureau of Mines and the Delaware State Geological Survey to sample and evaluate Delaware greensand for potential uses was continued. Forty samples of greensand were analyzed and the results were being evaluated for additional work. IODINE 2 Consumption of crude iodine did not change appreciably from that of 1971, but there was a surplus for most of -1972. Industry stocks were particularly high in early 1972 because of record tonnages of iodine imported during the previous year in anticipation of higher prices. Domestic output which represented a small part of overall supply, increased somewhat compared with 1971, whereas imports declined by more than 1 million pounds. Crude iodine production in the free world rose by possibly 700,000 pounds, or 3 to 4 percent, almost all accounted for by Japan, which more than made up for the slight decline in output by Chile, the world's second ranking iodine producer. Japanese iodine was priced at $1.86 per pound all year and Japan was the sole supplier of iodine to the United States. On the other hand, Chile was selling at $2.27 and, in effect, temporarily priced itself out of the U.S. market. Domestic iodine was also quoted at $2.27, but this did not cause difficulties in marketing, since the iodine was converted into downstream products before sale. At yearend, pressure was being built up for another round of upward evaluation of the Yen, which in turn would mean higher prices for Japanese iodine. Legislation and Government Programs. —On December 31, 1972, the Government strategic stockpile contained 2,955,692 pounds of crude iodine, and the supplemental stockpile, 5,056,122 pounds for a total of 8,011,814 pounds. The stockpile objective for iodine, established by the Office of Emergency Preparedness, was reduced from 8 million to 7.4 million pounds in October. However, there were no stockpile withdrawals or deliveries of iodine in 1972. 1 Prepared by Donald E. Eilertsen, physical scientist. 2 Prepared by K. P. Wang, physical scientist.
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