Vermiculite in Ontario, with an appendix on perlite
By: by G. R. Guillet.
Series: Industrial mineral report no. 7; Industrial mineral report (Ontario. Dept. of Mines) ;; 7.
Publisher: Ontario Dept. of Mines
Published: 1962
Place of publication: [Toronto]
Language: eng
Number of pages: 39
Subjects: Vermiculite -- Ontario.; Perlite -- Ontario.
Notes: Includes bibliographies.