 | | Book (volume) | | the land rises abruptly into the 6,000 sq. mi. Black Hills region enclosed by the Belle Fourche and Cheyenne...dikes ranking with those in Maine and Southern California for their production of gems and minerals. The...instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...huge crystals of sparkling blue Beryl from the Black Hills pegmatites have measured from 18’ to 27’ long...and Uranium has come only from the core of the Black Hills region. Two divisions are recognized: the |  | Nokleberg, Warren J., Bundtzen, Thomas K., Dawson, Kenneth M., Eremin, Roman A., Goryachev, Nikolai A., Koch, Richard D., Ratkin, Vladimir V., Rozenblum, Ilya S., Shpikerman, Vladimir I., Frolov, Yuri F., Gorodinsky, Mary E., Melnikov, Vladimir D., Ognyanov, Nikolai V., Petrachenko, Eugene D., Pozdeev, Anany I., Ross, Katherina V., Wood, Douglas H., Grybeck, Donald, Khanchuk, Alexander I., Kovbas, Lidiya I., Nekrasov, Ivan Ya., Sidorov, Anatoly A. (1996) Significant metalliferous and selected non-metalliferous lode deposits and placer districts for the Russian Far East, Alaska, and the Canadian Cordillera. Open-File Report Vol. 1996 (96-513) US Geological Survey doi:10.3133/ofr96513a | Report (issue) | | 9-U.S. Geological Survey, Anchorage INTRODUCTION Mine. A site where valuable minerals have been extracted...occurrence, mineral deposit, prospect, and (or) mine. Metallogenic belt. A geologic unit (area) that...that either contains or is favorable for a group of coeval and genetically-related, significant lode and...excavation has occurred. Significant mineral deposit. A mine, mineral deposit, prospect, or occurrence that is...commonly andcsitic tuff and breccia, and local black shale and red chert. Wall rocks may include sericite- |  | | Report (issue) | | 1889. The l a t t e r list, which included some 180 mine,ral s p e c i e s and an a d d i t i o n a l 95...v e r and g o l d a t t h e Jewel and o t h e r mines i n t h e Greenwood Mining D i v i s i o n (R. B...C. Dept. Mines and P e t . Res.; Geol., Exp. and Mining i n B.C., 1973, p. 43). J e t black a c a n t...y s t a l s i n vugs a t t h e Highland B e l l Mine, Wallace Mountain, n e a r B e a v e r d e l l ...t e h a s been found a t t h e S i l v e r King Mine, Toad Mountain, a b o u t 8 h s o u t h o f Nelson |
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