 | | Report (issue) | | Federico Pezzatta Page 26 Mount Antero: The Peak of Colorado Beryl Collecting Mark I. Jacobson Page 14 Crystal...Alexander Falster, pegmatite specialists from the University of New Orleans in Louisiana (USA), with the lowdown...pegmatites. Most ore beryl occurs in massive pegmatite zones where crystals may reach considerable size...can be found adjacent to the core margin of the pegmatite and in Suggested Chromophores for Beryl Color-generating...recorded from the Alger quarry in New Hampshire (USA). The crystal weighed 455 kilograms. 2m: The Queen |  | | Journal (article/letter/editorial) | | Copyright © 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 ⫹ .00 Pergamon...beryllium and the crustal Be cycle from migmatite to pegmatite JOSEPH M. EVENSEN*† and DAVID LONDON School of...Boyd Street, 810 Energy Center, Norman, OK 73019, USA (Received July 18, 2001; accepted in revised form...achieve beryl saturation (⫾ phenakite, Be2SiO4; chrysoberyl, BeAl2O4) have been established (Evensen et al...the final stages of the petrogenesis of granite–pegmatite systems. In combination with reported data on |  | | Journal (article/letter/editorial) | | and muscovite, 11.5 × 11.0 × 7.0 cm, Haramosh Mountains, Pakistan; Dan Weinrich specimen and photo. (c)...attributes of a layered pegmatite dike from near Palomar Mountain, San Diego County, California. Note that...in composition, and for convenience, the term pegmatite will refer to those of granitic composition in...cavity (Silver Dollar Pocket) exposed at the Havey pegmatite, Maine, in October 2013; photo courtesy of Jeff...Morris; (b) elbaite in a clay-packed pocket, Havey pegmatite, showing a portion of a silver dollar for scale; |  | | Book (volume) | | Eugene E. Foord U S. Geological Survey, Denver, Colorado 80225 Production editing and design Robert D...The United States Geological Survey at Denver, Colorado, contains essential information not to be had...greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...However, San Diego County, California, is arguably the most important gem-pegmatite district in North |  | | Journal (issue) | | Powellite from Nasik, India; Blue Topaz from the Ural Mountains, Russia; Devilline from the Czech Republic; Duftite...Nuristan, Afghanistan; Neptunite from San Benito County, California; Spinel from Mogok, Burma; and Emerald...While en route they stopped at Yellowstone National Park to see the wonderful sights there, and in due course...world. The Natural History Museum of Los Angeles County was particularly interesting among the museums...minerals at the Tourmaline Queen mine in Sz Diego County, California. By 1978 he had accumulated a hu£ Tourmaline |  | | Journal (issue) | | $384/three years, (Canada) $231/one year, (outside USA other than Canada) $325 for one year Subscription...couple of famous localities: Spruce Ridge in King County, Washington (for quartz and pyrite) and the Rock...geology major, first at Adams State College in Colorado and then later in a Master’s program at the University...mining areas such as Bisbee, Tombstone, Cripple Creek, Butte, Leadville, Goldfield, Tonopah, the Comstock...cm Eagle’s Nest Mine Sage Hill, Placer County California, USA Ex M. Pospisil Collection Photo Credit: |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...these dumps-adding that, in his judgment, many more "lost" localities for good ilmenite crystals exist in...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted |  | | 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. • ;...R. 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...on one of the City or Coun ty Park Board’s geology hikes led by a park ranger. The Mineralogical Record... Iores K IO i DITOR Here it is: our first Pegmatite Issue! Actually this accumulation is a happy accident; |  | | Report (issue) | | Helpful suggestions on field occurrences and pegmatite mineralogy were received horn Dr. James J. Norton...Geological Survey in Washington, D. C., or Denver, Colorado, or from the Department of Geology and Geological...Psilomelane Goethite (Limonite) Magnetite Chromite Chrysoberyl Microlite Tapiolite Columbite Tantalite HALIDES...prospects in the lower Ludlow lignites. Harding County: 1. Abemathyite has been identified as a component...Soluble In hydrochloric acid, yielding Custer County: 1. Allanite has been reported to occur as small |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Michigan Correspondents Dudley Blauwet Louisville, Colorado Miguel Calvo Zaragoza, Spain Joe Polityka Staten...an argument and let off some steam. I gradually lost contact with Brian during the 1990’s and wasn’t...arc-Extension (Borough of Villeray—Saint-Michel—Park-Extension). The quarry is shown on National Topographic...and the formation of the present Appalachian Mountains. The Humber Zone marks the western edge of the |  | | Report (issue) | | Pegmatite Investigations 1942-1945 Black Hills, South Dakota By LINCOLN R. PAGE and OTHERS GEOLOGICAL...Lode) claim by W. C. Stolli Lost Bonanza mica mine ___^ _____________________ Lost Indian mica prospect-_...pocket] PLATE 1. Index map showing locations of pegmatite mines and prospects. 2. 3. 4. 5. 6. 7. 8. 9....Ouster County, South Dakota. Detailed map, plans, and sections, Ann mica mine, Ouster County, South Dakota...Geologic map and sections Beecher Lode pegmatite, Ouster County, South Dakota. Geologic map and sections |
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