Talc and pyrophyllite in ...
United States.Bureau of Mines.
United States.Bureau of Mines.Division of Industrial Minerals.
Washington, D.C. : U.S. Department of the Interior, Bureau of Mines,
-1991.
Not distributed to depository libraries.
Description based on: 1990; title from caption.
Vols. for -1990 called: annual prelim.
Vols. for -1990 prepared in the Division of Industrial Minerals.
Talc industry
Soapstone
Pyrophyllite
Directory of companies mining talc, pyrophyllite, and soapstone in the United States in ...
Talc, soapstone, and pyrophyllite
Talc in ...