 | | Journal (issue) | | Articles Famous mineral localities: The Bristol copper mine, Connecticut......................................in the U.S.A. notesfrom th r EDITORS OLD YUMA MINE Another great mineral locality has now been closed...longfamous Old Yuma mine near Tucson (see R. L. Jones, “Famous mineral localities: the Old Yuma mine,” in vol....period of activity, access to the mine was cut off in 1984. In 1996 the mine area was absorbed into the Saguaro...and Mining Company for the sum of $558,000. The mine is now owned outright by the Federal Government |  | | Journal (article/letter/editorial) | | IN THE BOLIVIAN FEDERICO 1941 TIN No. 6 BELT. AHLFELD. ABSTRACT. This paper deals with vertical...vertical and lateral ore zoning in the Bolivian tin belt. Three groups of depositsare distinguished: Group...veins .............. : ............................. Gold quartz veins .....................................distribution of ore minerals within the Bolivian tin belt hasbeentreatedto someextentby the writer • and is... in recentstudiesby the writer. The Boliviantin belt (Fig. •) is an elongateregionof arcuate form with |  | | Report (issue) | | No. 12: Bolivia ht of Mineral Collecting N 978-0-9790998-5-4 Publisher Lithographie, LLC Denver, Colorado...specimen 'being sold with the shrine when he was in Bolivia buying mineral specimens in the 1970s. He took...ophyllite; 5. 2 cm tall Cerro Rico, Potosi, B,atillo province, Potosi Andy Seibel col/action Jejf-SC,m/.plwto...wp11�. Yaalte: 12.5 cm wide Siglo XX Mine, ,U� Bustillo province, Potosi Malty Zinn colkdknt (ex Marv...640 200 100 600 The Political Divisions of Bolivia (after United Nations Map No. 3875, Peacekeeping |  | | Journal (volume) | | Consul-General of Bolivia, New York. Mining Engineer, Butte, Mont. Tin Mining in Bolivia. Coal Alining...Alining in Montana. Gold in Montana. Ainsworth, Samuel Colcord, F. F. Lyons, Kan. Salt in Kansas. Atkinson...Manager, Co., New York. State Engineer and Ex-officio Mine Inspector, Bismarck, N. D. Collins, George Coal...Mining Engineer, Denver, Colo. Copper in Colorado. Gold in Colorado. Lead in Colorado. Atwater, C. G. Engineer... V. N. Metallurgical Engineer, Denver, Colo. Gold in South Dakota. State Geologist, Lincoln, Neb |
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