00750cam a22002411 4500 gs 63000156 DLC 20260227111412.0 740920s1962 xx 000 0 eng gs 63000156 (OCoLC)1017403 DLC NRU DLC premarc TN948.F6 S3 Sahinen, Uuno M. (Uuno Mathias), 1906- Fluorspar deposits in Montana. Butte, Montana School of Mines, 1962. iv, 38 p. maps, diagrs., table. 28 cm. Montana. Bureau of Mines and Geology. Bulletin 28 Bibliography: p. 37-38. Fluorspar Montana. Montana Bureau of Mines and Geology. Bulletin ; 28. 29680 29680