 | | 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...tengerite, quartz, albite, microcline, montmorillonite, fluorite, calcite (Rode Ranch pegmatite, Texas, USA)...Distribution: In the USA, from the Rode Ranch pegmatite, Llano Co., and the Clear Creek pegmatite, Burnet Co. |  | | Journal (article/letter/editorial) | | BEHOITE, BETA-BE(OH)2, FROM THE RODE RANCH PEGMATITE, LLANO COUNTY, TEXAS Anrnun J. EnrrunNn, GeologyDeparl...around gadolinite occurring in the Rode Ranch pegmatite, Llano County, Texas. It usually occurs as euhedral...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...Baringer Hill ppgmatite (Hess, 1907). The Rode Ranch pegmatite contains the primaly minerals allanite, |  | | 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...new rare-earth pegmatite,the Rode Ranch pegmarite, in the Central Mineral Region of Texas has made possiblethe...The dominant mass of the Rode Ranch pegmatite consistsof bodies of milky quartz and large massesand crystalsof...associations. Allanite and fergusoniteare found along a quartz-albite contact but, generally, within the albite |  | | Journal (article/letter/editorial) | | prismatic poikiloblastic crystals in a white matrix of quartz, feldspar and phenakite, and as a constituent of...cracks in samples from a small lens of a mafic pegmatite. It forms colourless, pseudo-octahedral crystals...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) | | 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) | | bastnäsite-(Ce), lanthanite, synchysite, calcite, quartz. Distribution: In Sweden, from Ytterby, on Resarö...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) | | 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...from Rode Ranch, Texas Ehlmann, Arthur J. Behoite, beta-Be(OH)1, from the Rode Ranch pegmatite' Llano...Llano county, Texas Einaudi. Marco T. An iron-sensitive stain for iron-rich sphalerite Einaudi, Marco T. |  | | Journal (article/letter/editorial) | | zones round gadolinitein the Rode Ranch pegmatite, Llano County, Texas. Named from the composition. Bernalite...from the Mammoth-St. Anthony mine, Tiger, Pinal County, Arizona. Named for its discoverer, Richard A....gemstone unique to Minnesota is the crystalline quartz replacement of fibrous goethite locally named binghamite...rock in the Cane Creek potash mine, Moab, Grand County, Utah; 956 M.H. HEY formula given as (Ca,Naz)7Ln2BzzO43...Mineral QM, from Madoc, Ontario, and from Pershing County, Nevada, are identical; monoclinic, composition |  | | 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 |  | Lyalina, L. M., Zozulya, D. R., Savchenko, Ye. E., Tarasov, M. P., Selivanova, E. A., Tarasova, E. (2014) Fluorbritholite-(Y) and yttrialite-(Y) from silexites of the Keivy alkali granites, Kola Peninsula. Geology of Ore Deposits, 56 (7) 589-602 doi:10.1134/s1075701514070095 | Journal (article/letter/editorial) | | Silexite (quartzolite) is a rock primarily composed of quartz (>60 vol %) representing a pegmatitic or hydrothermal...end member of granitic magma frac tionation. The quartz to feldspar ratio in silexites does not fall below...monomineralic quartz to feldspar–quartz and quartz–ore zones in mineralogy. In typical silexite, the quartz content...are shaded. Here and hereafter in figures: Qz, quartz; Px, pyroxene; Zrn, zircon; Brit, fluorbritholite(Y);...located both among mafic minerals of silexites and in quartz (Fig. 1). Their surface is frequently coated with |  | | Journal (article/letter/editorial) | | Be^A1^Si.O- ^ Kao (oH) A12S1205 4 si02 Kao 1 init quartz e Qtz J 2 4.657+.010 2 9.217+.050(?) 20,355+...naturalberyl breaks down to chrysoberyl,phenakite,and quartz at apHzo proximately15.5kbar and l340oCand to chrysobeFig...relatedbinarysystemBeO_SiO, Al2Os,beryl * phenakite t quartz* Cr2O3.Frondel by Morgan and Hummel (1949)revealedphenakiti...,Newkirk (1964) beryl (bassite),with phenakite,quartz, and hematite. dehydratedbehoiteto bromelliteat...phenakitebetween 500 and 600"C. They alteredberyl to quartz,to ber300 and 500oC,720 atm, but bertranditeappeared |  | | 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...marble-marmorite belt. The light colored skarn with white quartz bodies developed where the calcite-rich strata...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 |  | | 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...m long and 10–35 m in thickness. Quartz-albite-microcline pegmatite bodies are extremely enriched in...of a 1–10 cm width consisting by plagioclase and quartz with minor biotite, tourmaline, apatite, and epidote;...epidote; (2) granoblastic medium-grained quartz-albite zone of 0.3–5 m in width with minor and accessory |  | | Journal (article/letter/editorial) | | a-quartzor alkali-feldspar,the mineral is indexed as quartz, aor feldspar, alkali-. The page number cited repreAbsorption...The high terperature stability rnuscovite plus quartz 47L orientation 323 466 DALRIO, G. , with...with R.C. Ewing Yttrialite and uraninite frorn Texas 545 EHRLICH, ROBERT with T.A. Vogel and W.C. Luth...additional ninerals frorn the Rode Ranch pegmatite, Central Mineral Region, Texas 508 variation ce11 parameters...R. Craig FROST, B. RONALD Ferroan gahnite from quartz-biotitealmandine schist, Wind River Mormtains, |  | | 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 (issue) | | The Smithsonian Institution A Multiple Japan Law Quartz Twin 33 Richard A. Bideaux .............. department...gypsum crystals from the Cornwall Iron Mine, Lebanon County, Pennsyl vania. The entire duster measures only...Arthur Montgomery 4 some of these diamond and quartz crystals. Since he is an accomplished draftsman...identified; although it almost certainly came from a pegmatite in the Middletown area. A colored lithograph of... [Probably stained quartz crystals with pseudocubic terminations, from the quartz deposit at Lantern |  | | Journal (volume) | | Yttrian epidote and allanite-(Y) from a granite pegmatite in Bamble, Telemark, Norway 33 Tomas Husdal...the industrial minerals K-feldspar, Nafeldspar, quartz and mica (e.g. Glover et al. 2012). For these reasons...chemical zoning of pegmatite bodies, the occurrence of massive, monophase quartz cores in the centre...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 |  | | 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...Polylithionite Pyrite Pyrochlore Pyrophanite Pyrrhotite Quartz Rhabdophane(Ce) Rhodochrosite Rutile Sabinaite...Phlogopite Polylithionite Prehnite Pyrite Pyrrhotite Quartz Riebeckite Sanidine Sepiolite Serandite Shortite |  | | Book | | Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN...Iron-manganese phosphates of the Williams pegmatites, Coosa County, Alabama (by P. B. Leavens & T. A. Simpson) 6:66-73...ALICE GLORY HOLE The Alice glory hole, Clear Creek County, Colorado (by T. A. Hanson & W. B. Craft) 18:185187...--and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE MYERS --and...Allgood, J. Pradenas: Gold occurrences in Tuolumne County, California 18:41-45, 18:62-64 --with W. H. Wilkinson |  | | Journal (article/letter/editorial) | | The AC CE P weathering assemblage consists of quartz, K-feldspar and plagioclase (20% anorthite), with...activity product and Keq is the equilibrium constant. Quartz is assumed to be non-reactive. In order to incorporate...reactive and lower surface area substrates such as quartz and feldspar, suggesting that the actual Kd values...Behoite, beta-Be(OH)(2), from the Rode Ranch Pegmatite, Llano County, Texas. American Mineralogist, 55(1-2):...0.1 -14.0 K-feldspar 2.5 0.17 0.1 -14.6 Quartz 0 0.5 1 e Halloysite 0 0.01 20 -18 Species |  | | Journal (issue) | | Gl!!narm. San Antonio. Texas 78204 Mlcrocry•tal Collectlng In Keweenaw County, Michigan by Jean R. Rentmeister...Corpus Christi, Texas 78411 Mrs. Evelyn Rhodes, Secretary 221 Westminster, San Antonio, Texas 78228 Mrs. Viola...Smith. Treasurer 1215 South 41st Street. Temple. Texas 76501 GEMS a MINERALS Is published monthly by Gemac...CA. Host, Gem and Mineral Society ol San Mateo County. H.B. Murnan, P.O. Box 53, NAS Mollett Field, CA...Mineralogy Society. Annual Show. Benton-Franklin County Fairgrounds. Kennewick, WA. 10-10 and 10-6. Donald |  | | 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 |  | | 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...Calcite Fluorite Apatite 6 7 8 9 10 Orthoclase Quartz Topaz Corundum Diamond In a few descriptions we...crystallize with right- or left-handed forms (e.g., quartz). epitaxy Overgrowth of one crystal on another...(4) fluorite, (5) apatite, (6) orthoclase, (7) quartz, (8) topaz, (9) corundum, (10) diamond. monochromatic | | | Book (edition) | | Willard Lincoln. Encyclopedia of minerals ~~cbe County Public Library Saguache, Colorado OEMCO For Refere...Calcite 4 Fluorite 5 Apatite 6 7 8 9 10 Orthoclase Quartz Topaz Corundum Diamond In a few descriptions we...crystallize with right- or left-handed forms (e.g., quartz). epitaxy Overgrowth of one crystal on another...(4) fluorite, (5) apatite, (6) orthoclase, (7) quartz, (8) topaz, (9) corundum, (10) diamond. monochromatic...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing |
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