Deposits of the sillimanite group of minerals south of Ennis, Madison County, with notes on other occurrences in Montana.
Heinrich, E. William 1918-
Deposits of the sillimanite group of minerals south of Ennis, Madison County, with notes on other occurrences in Montana. - Butte, Montana School of Mines, 1948. - iii, 22 p. illus., plate, 28 cm. - Montana. Bureau of Mines and Geology. Miscellaneous contribution no. 10 . - Montana Bureau of Mines and Geology. Miscellaneous contribution ; no. 10. .
"References": p. 21-22.
gs 48000080
Sillimanite.
Mines and mineral resources--Montana--Madison County.
QE391.S5 / H4
Deposits of the sillimanite group of minerals south of Ennis, Madison County, with notes on other occurrences in Montana. - Butte, Montana School of Mines, 1948. - iii, 22 p. illus., plate, 28 cm. - Montana. Bureau of Mines and Geology. Miscellaneous contribution no. 10 . - Montana Bureau of Mines and Geology. Miscellaneous contribution ; no. 10. .
"References": p. 21-22.
gs 48000080
Sillimanite.
Mines and mineral resources--Montana--Madison County.
QE391.S5 / H4