 | | Report (issue) | | Pegmatites of the Fourmile Quadrangle, Black Hills South Dakota GEOLOGICAL SURVEY PROFESSIONAL PAPER 297-D ...Pegmatites of the Fourmile Quadrangle, Black Hills South Dakota By JACK A. REDDEN PEGMATITES AND OTHER PRECAMBRIAN...Age and origin of the veins.________________ Pegmatite _________________________________________ Distribution___...Sequence of crystallization of the layers Types of pegmatite bodies.______________________ Layered pegmati...228 229 229 230 230 233 233 235 237 237 240 Pegmatite Continued Mineralogy- _ _-_____-____Plagioclase_ |  | | Report (volume) | | Geology of the Calamity Peak Area Custer County South Dakota ~y DONALD H. KUPFER :ONTRIBUTIONS TO ECONOMIC...____________________________________ Granite-pegmatite complex_____________________________________ ...------------Pegmatite 6_ ___ _ ___ __ _____________ _____ _____ __ __ ____ __ Pegmatite 7_____ ______...______ ___ ___________ _______ __ _______ __ Pegmatite 8_____ _________ __ ______ _ ______________ ______...__________ Pegmatite 12_____ ____ __________ __ _______________ ____ __ E1 1 2 4 4 10 11 12 12 12 . |  | | Report (edition) | | Buckfield, Maine. Mined in 1996 by Holden !Jrothers Mining and currently in the Jim Mann collection. Photo...American mineralogy (Mitchell, 1987). The "cleavelandite" variety of albite feldspar, which was named...I 900 ' s, showing Loren Merrill 's tourmaline mining operation at Mount Mica. Table of Contents CHAPTER...displays Maine mineral clubs .. .7 .8 .8 .. 11 11 11 11 12 12 13 13 13 CHAPTER 3. MINERAL LOCALITY DESCRIPTIONS...much information on collecting sites in Oxford County. Numerous other collectors of Maine minerals also |  | | Journal (issue) | | 2024 Vol.99, No.1 ROCKS MINE ."Iii[! iil"J www.tandfonline.com/vram Pegmatite Minerals & Gems WILENS...Museum, ME John Rakovan New Mexico Institute of Mining & Technology, Socorro, NM Consulting Editors Joel...TX Bruce Cairncross, University oi Johannesburg, South Africa Steven C. Chamberlain, Syracuse, NY Merrill...Kampf, l.A. County Museum of Natural History, CA Virgil W. Lueth, New Mexico Institute of Mining & Technology...across a local area net\,vork. Subscription offices: USA/North America: Taylor & Francis Group, LLC, 530 Walnut |  | | Book | | in Beryl the Ancient 4 East, 9 Analysis, 11 Physical 50 Haiiy and His Successors, Beryl in...Jewelry, 146 Breastplate of the High Priest, 144 South America, Beryl in the Bible, 80 Emerald and 140... Beryl Bazzite, Infrared Color or “Bixbite,” 11. 223 and Synthetic Beryls Glass and Other Imitations...Derivations of Names and Portugal, 490 Republic of South Africa, Romania, 549 601 Yugoslavia, 485 Pakistan...Spain, 445 Greenland, India, 500 Republic, South West Africa 445 Ghana, Inner Somali 443 Germany |  | | Journal (article/letter/editorial) | | Figure 2. Index map of the Copper Mountain district, Fremont County, Wyoming. Guffy Peak and Birdseye Pass...Geological Survey topographic maps. The entire pegmatite district is on U.S. public lands administered by the...does require permission. Visitors to the pegmatite district are requested to pass through this land without...“Beryl from the Catherine No. 1 Mine, Cusper Mountain, Natrona County, Wvoming ” and appearc.d in the...Thoren of Shoshoni, is directly south and east of most of the pegmatite district. Access via that ranch, although |  | | Report (issue) | | Pegmatite Investigations 1942-45 New England By EUGENE N. CAMERON and OTHERS GEOLOGICAL SURVEY PROFESSIONAL...______________________________________ _ Location of pegmatite districts ___________________ _ Previous work..._________ _ History of pegmatite mining inN ew England _______ _ Mica mining ______________________________..._______ _ Feldspar mining ___________________________ _ Mining methods ___________________________ _...deposits _______________________ _ Geology of the pegmatite districts of Maine __ :. . _____ _ Metamorphic |  | | Report (issue) | | Introduction _________.-______-.___-_-______. Beryl mining, production, and uses__________ Internal structure...Keene district.__________________________ Beryl Mountain mine.-__-________--_ Chickering mine.____________________...Page Description of pegmatites Continued Raymond district--_________________ General geology.__________-_-_...districts________-_______--_-. Millard Chandler mine.____--__. Parker Mountain mine._________ Reconnaissance of other...7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Geologic map and sections of the Palermo No. 1 mine, Groton, Grafton |  | | Report (volume) | | Pegmatites of the Crystal Mountain District, Larimer County, Colorado GEOLOGICAL SURVEY BULLETIN 1011... Pegmatites of the Crystal Mountain District, Larimer County, Colorado By WILLIAM R. THURSTON GEOLOGICAL...---------------------------------------History of mining-_-_--___--__-----------.----__-----------_-_ Previous...Range.-___________-Geology of the Crystal Mountain district----------------..---.--Country rocks ______-_---__--_-...United States, showing 'locations of principal pegmatite mining districts. 2. Geologic map of the Hyatt area |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . Bonanza mine, T~te Jaune Cache, B. C . . . . . . . . . . . .... . . . . . . . ·.. White Creek, East Kootenay district, B. C. . ........... Skoakumchuck Creek, East........ : ....•........... Yellowknife-Beaulieu district, Northwest Territories ... Prelude Lake area ...................... Lac de Gras - Aylmer Lake district, Northwest Territories . . . . . . . . . . . ...Herb Lake district, Man. . . . . . . . . . . . . . . . . . . . . . . . . . . . Green Bay Mining and Exploration |  | | Journal (issue) | | available at the mine (except for Chestnut Ridge). - AMETHYST SITE AMHERST COUNTY The amethyst site...miles southeast of Amherst, Amherst County, about 1.0 mile off the south side of State Road 659approximately...BERYL MZNE AMELIA COUNTY The Beryl mine is located 3.8 miles east of.Amelia* Amelia County, off the southwest... is charged to collect from the site. The Beryl mine was operated as the Dobbin (Thraves) prospsct by...Materials Company prior to World War 11. The kaolinized pegmatite contains quartz and white to pale greenish-blueto |  | | Journal (issue) | | rubellite crystal, 75 mm long, from the Cruzeiro mine, Minas Gérais, Brazil. See 'The location, geology...Non-pegmatitic deposits of tourmaline include the Brumado mine (Bahia) which produces fine red uvite crystals and...specimens. Keywords: Tourmaline, pegmatite, eluvial deposits, gem mining, Brazil © Gemmological Association...place in the sequence of deposition within the pegmatite. Thus this property cannot be used to determine...Laranjeira mine (Coronel Murta). Fig. 5. Trichites in a cut rubellite from the Laranjeira mine (Coronel |  | | Journal (article/letter/editorial) | | pegmatites and associated wall rocks from ten pegmatite districts and individual occurrences of Precambrian-Late...pegmatites and pegmatite districts include the Evje-Iveland area, Norway; Harding pegmatite, New Mexico...Tanco pegmatite, Manitoba, Canada; Kiawa pegmatite, New Mexico, U.S.A.; and the Crestmore pegmatite, California...The 6 18 0 of quartz from a sanidine-bearing pegmatite in a sub-volcanic environment is +7.1%0' Late-stage...lower-temperature quartz is typically the heaviest in any pegmatite. The whole-rock isotopic compositions of the pegmatites |  | | Report (chapter) | | area . Lucy pegmatite. Results of the drill program . ..... . .. . . . Artdon pegmatite Subsurface pegmatite..... . . ... . . Molly and Bendum claim s Deer pegmatite , West Hawk Lake. . . . . . . . . . . . . . ....Lake .. ... . . . ... ..... .. . . . . . Beryl pegmatite north of Telford. 7 7 9 9 12 12 12 15 16 17 17...Lake/Cat Lake areas General statement 19 19 Pegmatite dykes in the Pointe du Bois area (Lac du Bois...Lamprey Falls) Lac du Bois pegmatite K-1 pegmatite . Lucky NO.3 pegmatite Pine claim , Winnipeg River |  | | Journal (article/letter/editorial) | | Michigan. Aesrnlcr Two contrasting swarms of pegmatite dikes occur intermingled in the Pikes Peak granite...minerals in pegmatites of the St. Peters Dome district, Mount Rosa area,Colorado,attracted the attention...and agesof pegmatites occur side-by-sidein the district has led us to a clarification of the paragenesis...the lack of muscovite and scarcity of beryl, the district receivedscant attention during World War II (Hanle-vet...Stern, U. S. GeologicalSurvey. fnformation on pegmatite locationsfurnishedby Messrs.Penceand Over is gratefully |  | | Report (issue) | | mineralization to caldera subsidence in the Creede district, San Juan Mountains, Colorado, by Thomas A. Steven..._________ ·_________________ _ 9. Alinement of mining districts in north-central Nevada, by Ralph J."...Tonopah, Nevada, by R: A. Gulbrandsen and D. G. Gielow_ 11. Sedimentary iron-formation in the Devonian Martin...d'Alene district, Idaho, by Robert E. Wallace, Allan B. Griggs, Arthur B. Campbell, and S. Warren Hobbs...__________ _ 14. Bleaching in the Coeur d'Alene district,( Idaho, by P. L. Weis ______________________ |  | | Report (chapter) | | Series 11 • €0LORAOO GEOLOGICAL SURVEY Rare-Earth Pegmatltes of the LIBRARY South Platte District, Colorado...photograph of the Oregon No. 2~ pegmatite, South Platte pegmatite district, Colorado. This striking example...structural zonation of the pegmatites of this district. A fifty foot high column (40 feet across at the...the bottom of the pit. The quartz core of the pegmatite was left standing in relief as the enveloping...map of this pegmatite. Resource Series 11 RARE-EARTH PEGMATITE$ OF THE SOUTH PLATTE DISTRICT, COLORADO |  | | Book | | '1·lJll'\11[1ljl {,: I ' I!,\ '1 REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY...and diamonds continue to play a major role in the mining sector, significant deposits of base metals and...minerals have helped Namibia rank amongst the top five mining countries in Africa. both in terms of production...fom1 that will provide the mineral exploration and mining industry with an important reference for further...to the establishment of some world-class mines. Mining is of tremendous economic importance to this young |  | | Book | | much biased by science with too little sense of mine for beauty) will keep his memory and work, alive...extraordinary minerals resultant from these elements, that draw the attention of mineralogists and mineral collectors...so as to render mining of these rare-element pegmatites feasible. The traditional mining of pegmatitic...aplitic rocks. In light of more than 1000 years of mining and an intensive study of the deeper parts of the...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area |  | | Report (issue) | | ............... 10 11 List of Tables Page 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Rare earths in...£ 70.0 or greater does not come from granite pegmatite, granite, or gneiss is reasonably high. Similarly...Britholite, Table 7 _L 50 60 2 = at.% La+Ce+Pr 70 80 11 12 12 < Fig. 1. 2 vs ratio La/Nd for Apatite and...30 1 I 60 La+Ce+Pr 50 S = at I 70 6" 10 81 11 80 13' 12 ,12 Fig. 2 2 vs 100Y/(Y+Ln) for Apatite...apatite and xenotime from the Gloserheia granite pegmatite, southern Norway: Am. Mineral, v. 60, p. 607-620 |
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