Minerals Yearbook, 1992: Talc and Pyrophyllite

摘要

Domestic production of talc decreased 4% from 1,037,000 metrics in 1991 to997,000 tons in 1992. The value of crude ore decreased 2% in value from $32 million. Sales of crude and processed talc decreased 5% in tonnage from 864,000 tons to 817,000 tons and increased 15% in value from $83 million to $95 million. Twelve companies operating 17 mines in 7 States produced talc, soapstone, and steatite. These companies generally were structured to cover all aspects of talc mining, from mining to processing. Only a few companies hired custom grinders to mill the ore. The largest of the domestic producers were Luzenac America Inc., Dal Minerals, Gouverneur Talc Co., Montana Talc Co., and Pfizer (Minerals Technologies Corp.). The major producing deposits were in Montana, New York, Texas, and Vermont.