 | | Journal (issue) | | collection. Photo: 5.1.Pekov. The Baringer Hill Pegmatite Llano County, Texas Art Smith artsmithite@msn.com...com Introduction This article on the Baringer Hill pegmatite does not contain new or addition historical...put together for two reasons. Recently some Baringer Hill specimens from the Philadelphia Academy of Natural...purchased along with other Texas minerals. Also a collecting field trip to the Llano area was carried out during...possibly similar rare-earth pegmatite collecting in Llano and Burnet counties. It was hoped that such a compilation |  | | Journal (issue) | | ..................... 5 The Baringer Hill Pegmatite, Llano County, Texas ..............................online and find a list of U.S. Representatives from Texas. There will be addresses, phone, and FAX numbers...in their district. Fortunately we have several Texas Representatives who will accept an e-mail from you...increase. Rep. Ted Poe (R) also allows emails from Texas constituents, not just his District. I believe Gene...Gene Green (D) does also. The following additional Texas Representatives appeared to accept my e-mails to |  | | Report (volume) | | BULLETIN 450 MINERAL RESOURCES OF THE LLANO-BURNET REGION, TEXAS WITH AN ACCOUNT OF THE PRE-CAMBRIAN GEOLOGY........................ 14 Schists and gneisses (Llano series).................................. . 14 Divisions... ILLUSTRATIONS. Page. PLATE I. Geologic map of Texas............................................ 7 II...economic map showing locations of Burnet and Llano quadrangles, Texas.........................................Economic and geologic map of I/lano quadrangle, Texas........ In pocket IV. A, Assimilation of schist |  | | Journal (article/letter/editorial) | | NEBRASKA NORTH DAKOTA, OKLAHOMA, SOUTH DAKOTA AND TEXAS BY MARGARET COOPER CONTENTS Page Page 1. Foreword...Part 2, and Part 3 258 Oklahoma, South Dakota, Texas and Section 2. Additional References 259 United...South Dakota, and Texas 262 souri, Nebraska, North Dakota, Oklahoma, South Dakota, and Texas 299 FOREWORD...Nebraska, North Dakota, Oklahoma, South Dakota, and Texas. It is Part 4 of a comprehensive bibliography planned...Nebraska, North Dakota, Oklahoma, South Dakota, and Texas; Index II, Geographical Index for Arkansas, Iowa |  | | Journal (article/letter/editorial) | | Hanson, Simmons, and Falster abstract on the Mojave County pegmatite district, Rochester Mineralogical Symposium...An example of an LCT pegmatite is the Oceanview mine, described by Mauthner in this issue (pages 292–297)...Hampshire (Samuelson, Hollmann, and Holt 1990); Baringer Hill, Texas (Landes Rare-Element Miarolitic Class...River field, Manitoba interior to marginal Llano Co., Texas; South Platte district, Colorado; Western...shields, Siberia; Eastern Baltic Shield Muscovite Muscovite– Rare Element Y, REE, Ti, U, Th, Zr, Nb |  | | Journal (issue) | | Pegmatites Lake Buchanan, Llano County, Texas Art Smith 9118 Concho Str. Houston, Texas 77036 Ray Stegemoller...Box 201, Canine Road Marble Falls, Texas 78654 .7 l Llano County has long been known for its rare-earth...nl996 .. Texas resulted in extremely low water levels in Lake Buchanan...Mexico • Art Smith 9118 Concho Street Houston, Texas 77036 In the fall of 1996 when I purchased part...former Chief Geologist for Texas Gulf at their Frasch sulfur mine at New Gulf, Texas, I noticed a small vial |  | | Journal (article/letter/editorial) | | PEGMATITE, LLANO COUN'I'Y, TEXAS RonRnr GnnnNwooo, GeologyDept., Univ, oJ'Howslon,Houston, Texas. The Badu...McMillan, 1947). Apart from q\artz, feldspar,muscovite,kaolinite and pyrite, "two small piecesof rare-earth...occasion. 'Ihe well-known rare-earth pegmatite of Baringer Hill, now.submerged beneath Lake Buchanan 5 miles...across,veined bv reclaibite (Landes,1932).13a_ringer Hill fluorite is almost colorlessto dark violet, and...apparentlv a ver\r similar occurrenceto that of Baringer Hill. Illuorite has also been reported from a mass |  | | Journal (issue) | | "01ii;'fllcd mine I, r Lhcr Uuu, 11 roi:t:lure-,amorpl1.0miblob or...(14 meters) in length were reported from the Etta Mine in South Dakota (see figure 2). and one large crystal...cadmium sulfide. They are both found at Sterling Hill and Franklin (New Jersey) almost exclusively as...Huizing, 534 I Thrasher Dr, Cincinnati OH 45247 USA Please, make checks payable to Mineralogical Almanac...fine-grained, mechanical mixture of albite and muscovite (variety "cymatolite") that forms slightly wavy |  | | Report (issue) | | component of sediments. Association: Epidote, muscovite, °uorite. Distribution: Widespread; some localities...France. In the USA, at Pacoima Canyon, Los Angeles Co., California; in the Baringer Hill pegmatite, 26...Ranch, Llano Co., Texas. In Canada, from Olden Township, Frontenac Co., Quebec; in the McDonald mine, Hybla...Oaxaca, Mexico. In the Mary Kathleen mine, Queensland, and at Broken Hill, New South Wales, Australia. From |  | | Journal (article/letter/editorial) | | North America; the rare earth pegmatitesb of Llano County (Texas), Minas Geraes(BraziI), Ytterby (Sweden)...A. L Genesis of mica pegmatite deposits, Latah County, Idaho: , Econ. Geology,vol. 28, no. 1, pp. 41-58...30Lovering, T. S., Magmatic chalcopyrite, Park County, Montana: Econ. Geology,vol 19, pp 636-640, 1924...Geology and mineral resources of eastern Cassia County, Idaho: Brill. Id.aho Bta. Mines ond.Geology,vol...Flint, George M., Famous mineral localities; Beryl Hill, Grafton, New Hampshire: ,42. Mi.neral,., vol. 4 |  | | Journal (article/letter/editorial) | | Geochronologie Study of the Lone Grove Pluton from the Llano Uplift, Texas1 by R. E. ZARTMAN2 Division of Geological...some igneous and metamorphic rocks from the Llano Uplift, Texas, was undertaken to investigate, in detail...granitic pluton and surrounding rocks from the Llano Uplift, Texas, suggests that this area has been involved...earliest recognition of Precambrian rocks in central Texas was by T. B. Comstock (1890), who applied the terms...Sidney Paige (1911, 1912) made a geologic map of the Llano-Burnet quadrangles and redefined the major metamorphic |  | | Report (issue) | | By FRANK L. HESS. GEOGRAPHY. The Brinton arsenic mine is located on the south slope of Lick Ridge, one...of the Appalachian Mountains, at Brinton, Floyd County, Va., about 14 miles southeast of Christiansburg...(See fig. 33.) So far as is known this is the only mine in the eastern United States which has mined arsenic...shipment to arsenic plants located at other points. The mine is reached from Christiansburg by a very good mountain...which the only steep grades are within a mile of the mine. According to the Survey's topographic map of this |  | | Report (volume) | | ................................. Androscoggin County............................................. Auburn......................................... Lincoln County ............................................................-...:.....-................. Oxford County........................;............................................................. Sagadahoc County.. '...... ............................................................................ Hartford County ..... ....................:............ ...... |  | | Journal (article/letter/editorial) | | deposition from the walls inward: border zone, muscovite-quartz zone, perthite zone, and quartz core. In...sheet-bearing mica were replaced in parts of the muscovite-qluartz zone and most of the microcline-perthite...War II induced operators to work the long dormant mine in 1943 and 1944. Unwatering and underground mining...pegmatite as a whole has previously been made. The mine lies 550 feet N. 48o E. of the railroad station...all of North Branford, Connecticut, operated the mine for mica, and the Sandy Ridge Mica and Mining Company |  | | Report (issue) | | which have been formed to exploit them. WASHINGTON COUNTY. AMERICAN MOLYBDENUM COMPANY'S PROPERTY. Location...deposit is situated on the south slope of a gentle hill 500 or 600 feet high, overlooking the stretch of...Molybdenum Company. HANCOCK COUNTY. The known deposits of molybdenum in Hancock County lie along the north and...high, known as Catherines Hill, has been prospected to some extent. The hill shows several benches with...prominently granular appearance, showing little or no muscovite, small amounts of biotite, and considerable variation |  | | Journal (article/letter/editorial) | | feldspars, quartz, spodumene, and the micas biotite, muscovite, and phlogopite, and to lesser extents by allanite...from a mass of pegmatite in northwestern Riverside county, california. He clearly recollects his chagrin...suggestionsrelating to results of his operations at the Harding mine in northern New Mexico. The writer also has profited...of giant, lath-shaped spodumene crystals, Harding mine, New Mexico. The largest crystals are about 12 feet...North Carolina, in the Harding pegmatite of Taos County, New Mexico (Fig. 1; 8, Fig.8), in a small area |  | Matsubara, Satoshi, Miyawaki, Ritsuro, Yokoyama, Kazumi, Shigeoka, Masako, Momma, Koichi, Yamamoto, Sadaoki (2014) Magnesiorowlandite–(Y), Y4(Mg,Fe)(Si2O7)2F2, a new mineral in a pegmatite at Souri Valley, Komono, Mie Prefecture, central Japan. Journal of Mineralogical and Petrological Sciences, 109 (3) 109-117 doi:10.2465/jmps.131126 | Journal (article/letter/editorial) | | is associated with quartz, albite, K–feldspar, muscovite, allanite–(Ce), gadolinite–(Y), and ‘yftisite–(Y)’...rowlandite–(Y), which was described from Barringer Hill, Texas, USA (Hidden, 1891), and the mineral subsequently...mainly composed of quartz, albite, K–feldspar, and muscovite, together with accessory minerals such as allanite–(Ce)...(1974). † Barringer Hill, Texas, USA. Frondel (1961). ‡ Clear Creek, Texas, USA. Crook et al. (1978)...gadolinite–(Y) in the pegmatite at Barringer Hill, Llano County, Texas, USA (Hidden, 1891). Later, Hess (1908) |  | | Journal (article/letter/editorial) | | sfrom Mariposa County, Californi.a, The North Duncan gold mine near llornitos, Mariposa County, California...collected in April 1931, from the Chestnut Flat Feldspar Mine near Spruce Pine, North Carolina. The flattened...essentially of orthoclase. The occurrence of zoisite in muscovite is uncommon, but the occurrence of the other two...Boringer Hill, Teras, Pegmatite. The Baringer Hill pegmatite lies near the center of the Llano or Cbntral...Mineral Region about 100 miles northwest of Austin, Texas. The pegmatite is intruded into granite which in |  | | Report (issue) | | Austin Austin, Texas 78712 JOHN T. LONSDALE, Director Report of Investigations — No. 42 Texas Gemstones...OFECONOMIC GEOLOGY The University of Texas at Austin Austin, Texas 78712 JOHN T. LONSDALE, Director —...— No. 42 Report of Investigations Texas Gemstones By Elbert A. King, Jr. February 1961 — — — Second...gemstones Cabochon gems Faceted gems Tumbled gems Texas gemstones Amber Augite Beryl Celestite Diamond Epidote...Illustrations 1. Typical crystal form of three common Texas gemstones 2. Variations of the cabochon cut 3. Diamond |  | | Report (volume) | | North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G. Leonard, Grand Forks..........Mr. George H. Ashley, Washington, D. C. Texas............Dr. William B. Phillips, Austin. Vermont...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Report (issue) | | ¥ TEXAS ROCKS AND \ r - An Amateur’s Guide ;s ROSELLE M. GIRARD A b OF ECONOMIC GEOLOGY V N IVERSITY...The University of Texas Austin, Texas Peter T. Flawn, Director Guidebook 6 TEXAS ROCKS AND MINERALS...Rock identification charts Descriptions of some Texas rocks and minerals Anhydrite .....................Composition, hardness, and specific gravity of some Texas minerals Pace 25 26 39 40 43 43 43 44 45 46 47...81 84 85 85 87 87 88 89 90 93 94 94 95 97 99 Texas Rocks and Minerals Books about rocks and minerals |  | | Journal (article/letter/editorial) | | contain in addition accessoryminerals such as muscovite, biotite, garnet, and perhaps common beryl and...Examples of alaskite pegmatites occur at Baringer Hill, Texas; New Ross, Nova Scotia;114and Silver Peak...every continent, and are most important sourcesof muscovite. A good example of this type, occurring in Siberia...near Milford, New Hampshire,lle and in Riverside County, California.r20Qtartz diorite pegmatites occur...Madagascar; Wodgina, Western Australia; Lunenburg County, Nova Scotia; IJto, Swedenl east Transbaikalia;123 |  | | Journal (issue) | | ............ 3 Spring Collecting Trip to the Texas Hill Country .......................................and desserts. I Spring Collecting Trip to the Texas Hill Country by Art Smith artsmithite@msn.com Member... knew that making a collecting trip to central Texas May 12–18 might be pushing my luck a bit as far...still there but not as strong. Heading northeast to Llano, I decided to take the Willow City scenic loop and...right, though I was close to it. In Llano, I stopped by the Llano Uplift Rockshop and saw that it had |  | | Journal (issue) | | ................78 by Pete J. Dunn The snowbird Mine, Montana’s Parisite Loca lity.....................Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas............................................... 112 by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by...between Minot and Auburn, Maine, in Androscoggin County. The Pulsifer quarry, along with the Keith and...lepidolite, accom panied by small amounts of albite, muscovite and cookeite. The quartz crystals ranged up to |  | | Journal (issue) | | MINERAL COLLECTIONS IN TEXAS III A SUPPLEMENT TO THE MINERALOGICAL RECORD, NOVEMBER–DECEMBER 2020 ... Mineral Collections in TEXAS UVolume IIIV With an Introduction by Wendell Wilson A Supplement to...November–December 2020 MINERAL COLLECTIONS IN TEXAS Mineral Collections in Texas Volume III A Supplement to The Mineralogical...row, from left: Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department...twin, 5.5 cm, from the Amo tin deposit, Ximeng County, Yunnan, China. Wally Mann collection; Joe Budd |
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