 | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | sbestos ore Lead ore, Balmat mine, N . Y. Chromite-chromium ore, Washington Zinc ore, Friedensville, Pa...Manganese nodules, o cean floor 13. Botryoidal fluorite ore, Poncha Springs, Colo . 14. Tungsten ore,...deposits UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1976 UNITED STATES DEPARTMENT OF THE INTERIOR...of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock Number 024-001-02901-4 APPRAISAL...Survey in accordance with the provisions of the Mining and Minerals Policy Act of 1970 (Public Law 91-631 |  | | Book | | Department of Geological Sciences Duluth MN 55812-2496 USA grapp@d.umn.edu ISBN: 978-3-540-78593-4 e-ISBN:.... . . . . . . . . . . . . . . . . 64 Outcrops, Mining, and Quarrying . . . . . . . . . . . . . . . ..... . . . . . . . . . . . 42 3.1 Granite grinder, Mine Dunquash, Egyptian Eastern Desert . . . . . . ....quartzite, Boulder Lake Reservoir, St. Louis County, Minnesota, USA . . . . . . . . . . . . . . . . . . . ...southwestern USA . . . . . . . . . . . . . . . . . . . . . 87 Basalt hand axe from unnamed wadi near Mine Mueilha |
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