Sillimanite deposits of the Dillon region, Montana
By: by E. Wm. Heinrich
Series: Montana Bureau of Mines and Geology. Memoir -- no. 30; Memoir (Montana Bureau of Mines and Geology) -- 30.
Publisher: Montana School of Mines
Published: 1949
Place of publication: Butte
Language: eng
Number of pages: 43
Subjects: Sillimanite
Notes: Bibliography: p. 42-43.