Talc, steatite, and soapstone; pyrophyllite
Subtitle: by Hugh S. Spence.
Contributors: Spence, Hugh Swaine, 1885-
Publisher: Printer to the King
Published: 1940
Place of publication: Ottawa
Language: eng
Number of pages: 146
Subjects: Talc; Soapstone; Pyrophyllite
Notes: At head of title: Canada.  Department of Mines and Resources. Mines and Geology Branch.  Bureau of Mines.  Includes bibliography.