Deposits of the sillimanite group of minerals south of Ennis, Madison County
Subtitle: with notes on other occurrences in Montana.
Series: Montana. Bureau of Mines and Geology. Miscellaneous contribution; no. 10
Publisher: Montana School of Mines
Published: 1948
Place of publication: Butte
Language: eng
Number of pages: 22
Subjects: Sillimanite.; Mines and mineral resources -- Montana -- Madison County.
Notes: "References": p. 21-22.