 | | Report (issue) | | 55(3) Z=4 X-ray Powder Pattern: Rode Ranch pegmatite, Texas, USA. 2.39 (vs+), 3.88 (vs), 3.83 (vs)...granite pegmatite as a near-surface alteration product of gadolinite (Rode Ranch pegmatite, Texas, USA); in...altered volcanic tuff (Honeycomb Hills, Utah, USA); in pegmatite veins and miarolitic cavities in nepheline...syenite (Mont Saint-Hilaire, Canada). Association: Gadolinite, bastnäsite, tengerite, quartz, albite, microcline...calcite (Rode Ranch pegmatite, Texas, USA). Distribution: In the USA, from the Rode Ranch pegmatite, Llano |  | | Journal (article/letter/editorial) | | BEHOITE, BETA-BE(OH)2, FROM THE RODE RANCH PEGMATITE, LLANO COUNTY, TEXAS Anrnun J. EnrrunNn, GeologyDeparl...alteration zones around gadolinite occurring in the Rode Ranch pegmatite, Llano County, Texas. It usually occurs...Saba, Texas in an examination of various sarnplesfrom the Rode Ranch pegmatite. This pegmatite occurs...Precambrian rocks of the Central Mineral Region of Texas and has a suite of rare earth minerals similar to...(Hess, 1907). The Rode Ranch pegmatite contains the primaly minerals allanite, gadolinite, crytolite and |  | | Journal (article/letter/editorial) | | CENTRAL A. J. EHLMANN, RARE-EARTH MINERAL PEGMATITE REGION, TEXAS J. L. WALPER, AND J. WILLIAMS CONTENTS........... 1348 1348 1350 Description of the pegmatite ........................................... Mineral............................................... Gadolinite ...............................................new rare-earth pegmatite,the Rode Ranch pegmarite, in the Central Mineral Region of Texas has made possiblethe...of BuchananLake. The dominant mass of the Rode Ranch pegmatite consistsof bodies of milky quartz and large |  | | Journal (article/letter/editorial) | | Clear Creek pegmatite,Burnet County, Texas,and at the Rode Ranch pegmatite, Llano County,Texas.Associated...honor P : 1.917(2), 7 : 1.921(2). of the stateof Texas,the locationof the BarringerHill rare-earth pegmatitedistrict... yttrofluorite, and gadolinite at the Clear Creek pegmatite,Burnet County, Texas. Associatedminerals...e s t a t e o f Texas,the location of the famous Barringer Hill rareearth pegmatite district. The mineral...occurs on one specimencollected at the Clear Creek pegmatite, 7 miles northwest of Burnet, ' Contribution No |  | | Journal (article/letter/editorial) | | cracks in samples from a small lens of a mafic pegmatite. It forms colourless, pseudo-octahedral crystals...to pink-orange danalite, dark greenish black gadolinite-(Y), galena, black høgtuvaite, brown to yellow...Kristallographie, Universität Wien. Danalite, gadolinite-(Y), thorite and titanite were identified by...2015) and the type locality at the Rode Ranch pegmatite, Texas, USA, where the forms {011} and {110} were...Behoite, beta-Be(OH)2, from the Rode Ranch pegmatite, Llano County, Texas. American Mineralogist 55, 1-9 |  | | Journal (article/letter/editorial) | | GentralMineralRegion,Texas RopNey C. EwrNc.l AND ARTHUn J. ErrrrvraNN Department ol Geology, Texas Christian Unirsersity...Unirsersity, Fort Worth, Texas 76129 Abstract Yttrialite occurs in the Rode Ranch pegmatiteas irregular...diffraction. In the original study of the Rode Ranch pegmatite, Microscopic fragments are colorlessto dark...brown Ehlmann et al (1964) describedallanite, gadolinite, and isotropic. The index of refraction varies...geologic setting between the Rode in the alteration of metamict minerals. Ranch and the famous, but now-inundated |  | | Journal (article/letter/editorial) | | 1329 Arizona Economic geology Aluminum, Maricopa county, Wickenberg (Sheridan, Michael F , et al.) tt-t2...(Mclean, W. John, er a/.) 7-E 1103 Hemihedrite,Pinal county, Florencemine, Maricopacounty, Wickenburg,Rat Tail...a/.) 7-8 1088 Kinoite, SantaRita mountains,Pima county (Anthony, John W., er a/.) 5-6 7O9 Phoenicochroite...er a/.) 1.2 224 Breccia Intrusive Utah, San Juan county, MosesRock dike, kimberlite (McGetchin, Thomas...(Omori, Keiichi.) tt-12 1897 Wardsmithite,Inyo county, Death Valley, Tertiary, Furnace Creek formation |  | | Report (issue) | | coating on yttrium-bearing minerals. Association: Gadolinite-(Y), lokkaite-(Y), kimuraite-(Y), bastnäsite-(Ce)...Värmland. From Rosås, Norway. At the Pyörönmaa pegmatite, Kangasala, and Lövböle, Kemiö, Finland. From...Evans-Lou pegmatite, 32 km north of Hull, Quebec, Canada. In the USA, from the Baringer Hill pegmatite, 26... and the Rode Ranch pegmatite, near Bluffton, Llano Co., and from the Clear Creek pegmatite, Burnet Co...Co. Texas. Additionally reported localities require modern confirmation. Name: To honor C. Tenger, Swedish |  | | Journal (article/letter/editorial) | | Texas mineral locality INDEX Whereas Texas is well known for its vastness, cattle industry, and oil...I T S T O P O G R A P H Y A N D G E O L O G Y , Texas, the second largest state, has produced relatively...famous localities. A s this article will show, Texas has had—or currently has—nu merous mineral occurrences...produce good specimens; yet when specimens from Texas are sought in collections and dealers' stocks, few...some basic facts that help explain the situation. Texas has very little federal land in its mineralized |  | | Journal (article/letter/editorial) | | ANNEALING CHARACTERISTICSOF METAMICT GADOLINITE FROM RODE RANCH TEXAS Snrnr.By J. GrnsoN, Department of...EuluaNw, Department of Geology,Texas Christian (lniaersity, Fort Worth, Texas 76129. Atsrnecr Chemically...metamict gadolinite was heated in air at varied temperatures and time intervals. At 1080"c gadolinite was...heating time. INrnoouctroN Completely metamict gadolinite (having no X-ray diffraction pattern) will recrystallize...giving the X-ray diffractogram of crystalline gadolinite. Problems arise, however, in obtaining consistent |  | | Journal (article/letter/editorial) | | and its relationshipto melilite and datolite-gadolinite Berry, James fu. A variable-volume silver liner...and its relationship to melilite and datolite-gadolinite Borst, Roger L. Epigenetic chlorite crystals...Brookins, D. G. Metastibnite from The Geysers, Sonoma county, California Brown, F. H. Zoning in some volcanic...Butler, J. C. Rhcinite from Big Bend National Park, Texas C a b r i , L . J , C o s t i b i t e ( C o S b...Bend National Park, Texas Carman, M. F. Rhcinite from Big Bend National Park, Texas Carmichael, I. S. E |  | | Journal (article/letter/editorial) | | mineral composition of the nepheline syenite pegmatite from the Sahar jok Intrusion has resulted in...identified in the Kola region for the first time. The pegmatite body at the contact between nepheline syenite...United States). Mimetite was found in the same pegmatite of the Saharjok intrusion. It forms unusual parallelfibrous...essexite with the formation of fenite halos and pegmatite veins. Syngenetic pegmatoid aggregates and veins...Bel’kov (1984) and (b) its north eastern part. The pegmatite outcrop (not to scale) in the contact zone between |  | | Journal (article/letter/editorial) | | radiotechnics and many other high-tech industries. USA is the main producer of beryllium ore from bertrandite-bearing...and small stocks of tourmaline granites. Six pegmatite fields, comprising Polmostundra, Kolmozero and...10–35 m in thickness. Quartz-albite-microcline pegmatite bodies are extremely enriched in rare element...Kolmozero-Voronja belt are comparable to those from giant pegmatite-hosted Li-Ta-Be deposits, i.e., Greenbushes, Wodgina...Corne and Wekusko in Canada, and North Carolina in USA [25]. The Shongui occurrence in Kolmozero-Voronja |  | | Journal (article/letter/editorial) | | ABSTRACTS SEVEN NEW BARIUM MINERALS FROM FRESNO COUNTY, CALIFORNIA EASTERN CaliJornia Dilision Joux...silicate minerals have been found in eastern Fresno County, California. The minerais occur in sanbornite-bearing...dynamothermal metamorphism, are invaded by mirocline-rich pegmatite and black silexite bodies loaded with innumerable...RARE-EARTH PEGMATITI, THE CENTRAL MINERAL REGION, TEXAS FROM A. J. Enr,nexr, J. L. ,Wer,rnn, Teras Chri...The discovery of a new rare-earth pegmatite, the Rode Ranch pegmatite, in the central Mineral Region of |  | | Journal (article/letter/editorial) | | Fertile granites of Precambrian rare-element pegmatite fields" is geochemistry controlled by tectonic...Fertile granites of Precambrian rare-element pegmatite fields: is geochemistry controlled by tectonic...twenty fertile granites and their rare-element pegmatite aureoles was examined to correlate their tectonic... Tectonic control on geochemistry of granite-pegmatite suites is poor and secondary to the fundamental...genetically conditioned twofold subdivision of pegmatite categories: (i) A broadly diversified spectrum |  | | Journal (issue) | | e r a lo j g ic a l Volume Eight/Number Two PEGMATITE ISSUE #1 p u b lis h e r ls * h n Q n i. • ;...Lasmanis The Clear Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas.........................by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by Richard... Iores K IO i DITOR Here it is: our first Pegmatite Issue! Actually this accumulation is a happy accident;...our file of articles I realized we had enough pegmatite-related papers to fill an issue. One advantage |  | | Journal (volume) | | Yttrian epidote and allanite-(Y) from a granite pegmatite in Bamble, Telemark, Norway 33 Tomas Husdal...size, the mineralogical and chemical zoning of pegmatite bodies, the occurrence of massive, monophase quartz...rocks. In the following three aspects regarding pegmatite classification and genesis are taken up to illustrate...pegmatites – is currently facing. Challenges of pegmatite classification The classification of rocks, which...within the pegmatite bodies comprising a distinct mineralogical and chemical zoning. In pegmatite bodies |  | | Book (edition) | | (Brazil). Malcolm Back (Canada), Henry L. Barwood (USA). Dmitriy Belakovskiy (Russia). Fabio Bellatreccia...(Italy), T.S. Ercit (Canada). Alexander Falster (USA). Jeffrey de Fourestier (Canada). Robert Gault (Canada)...Henderson. Jr. (USA). D.D. Hogarth (Canada). J.L. Jam bor (Canada), Anthony R. Kampf (USA). Pave! M. Kartashov...Karnp-Moller (Denmark). Akira Kato (Japan). Lance E. Keams (USA). Elisabeth Kirchner (Austria), Uwe Kolitsch (Austria)...Republic). Per Nystcn (Sweden), David O'Hanlcy (USA). Filippo Olmi (deccased) (ltaly). Werner H. Paar |  | | Journal (issue) | | gypsum crystals from the Cornwall Iron Mine, Lebanon County, Pennsyl vania. The entire duster measures only...identified; although it almost certainly came from a pegmatite in the Middletown area. A colored lithograph of...veins of the Northampton district in Hampshire County, Massachusetts in the American Journal of Science...during the Civil War, devel oped the Mount Mica pegmatite for gem tourmaline. Dickinsonite was named in...marine evaporite deposit of Saline Valley, Inyo County, California: Geochim. Cosmochim. Acta., 32, 1279-1301 |  | | Book | | 21; American Geophysical Union: Washington, DC, USA, 1990; 242p. Pease, V.; Vernikovsky, V. The tectono-magmatic...United States Geological Survey: Menlo Park, CA, USA, 1995; pp. 122–132. Dolmatova, I.V.; Peshkova, I...FS-2008-3049; U.S. Geological Survey: Reston, VA, USA, 2008; 4p. Klett, T.; Pitman, J. Assessment of undiscovered...Multivariate Analysis; John Wiley & Sons: New York, NY, USA, 1971; p. 677. Tamura, R. Multivariate Nonparametric...latest rocks in the deposit area are granite-pegmatite veins, which cut all rocks, including those mineralized |  | | Journal (issue) | | mountain lies about 40 km east of Montreal in Rouville County, Quebec, very close to and clearly visible from...marble, presumably Grenvillian in age, are common. Pegmatite dikes, pipes and lenses, breccias, porphyritic...Zones of breccia and sodalite syenite, as well as pegmatite veins and miarolitic cavities in nepheline syenite... Figure 6. The most exciting find of 1988. A large pegmatite pocket containing fine serandite crystals and...very abundantly in both altered and unaltered pegmatite veins and pipes as well as in miarolitic cavities |  | | Book (edition) | | Lincoln. Encyclopedia of minerals Sagiiache County Pu blic Library Saguache , Colorado DEMCO For...Photo Editor: Wendell E. Wilson Library Saguache County Public Saguache, Colorado VAN NOSTRAND REINHOLD...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...oil shale of the Green River Formation, Uintah County, Utah, associated with authigenic orthoclase, pyrite;...the Fuemrol No. 2 mine, Temple Mountain, Emery County, Utah; also sparsely disseminated in uraniferous | | | Book (edition) | | Willard Lincoln. Encyclopedia of minerals ~~cbe County Public Library Saguache, Colorado OEMCO For Refere...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...the Fuemrol No. 2 mine, Temple Mountain, Emery County, Utah; also sparsely disseminated in uraniferous...in the Cave Hills and Slim Buttes areas, Harding County, South Dakota. SELECTED REFERENCES: Thompson, M...oil shale of the Green River Formation, Uintah County, Utah, associated with authigenic orthoclase, pyrite; |  | | Journal (article/letter/editorial) | | gradually towards the eastern boundary of the pegmatite field. Some of the primary aureoles have a cross-cutting...weathering zones on granitic pegmatities. A group of pegmatite dikes containing columbite, accessory beryl, and...1) 25 36 22 25 (7.2) 33 4.3 3.6 32 18 - Pegmatite vein containing rubellite and accessory beryl...tungsten deposits and particularly in rubellite pegmatite deposits (Table 63). Finally, there are mechanical...mainly from 4 to 30 ppm, and here there were also pegmatite fields containing tantalocolumbite, beryl, and |  | | Book | | Enterprises, PO Box 213, Livermore, California, 94551, USA. Because of space limitations, only a subset of the...Hidden Valley Road, Kingsport, Tennessee, 37663, USA. The authors appreciate the advice and kind assistance...City, Nevada, USA; Peter Embrey, London, England; Jessie Hardman, Long Beach, California, USA; and Barbara...Barbara Nichols, Livermore, California, USA. All of these colleagues made helpful comments and substantive...Enterprises PC Box 213 Livermore California 94551 USA Elemental Table “Element” Aluminum Amide Ammonium |
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