 | | Journal (article/letter/editorial) | | Lupulescu, New York State Museum; Dr. George Robinson, Michigan Technological University; Dr. Sarah Hanson, Adrian...ACCESSORY MINERALOGY OF AN EVOLVED DICKINSON COUNTY, MICHIGAN, PEGMATITE. T. W. Buchholz1, A. U. Falster 2, W...ninety known pegmatite occurrences in central Dickinson County in the Upper Peninsula of Michigan. A small...small beryl-rich pegmatite was investigated to describe its mineralogy and determine its degree of geochemical...geochemical evolution. The pegmatite is emplaced in Lower Proterozoic metamorphic rocks of the Peavy Node |  | | Report (issue) | | Beryl and Its Color Varieties Page 4 Mineralogy of Beryl and the Beryl Group William "Skip" Simmons...Peak of Colorado Beryl Collecting Mark I. Jacobson Page 14 Crystal Structure of Beryl and Pezzottaite...England Gem Beryl Bruce Jarnot Page 16 Bazzite of the Alps Stefan Weiss Page 32 Beryl from the Pegmatites...Page 22 Beryl Color Varieties William "Skip" Simmons and Alexander Falster Page 49 Gem Beryl from Russia...Breithaupt's Beryl Seal Mineralogist Friedrich August Breithaupt had his seal carved into a beryl crystal |  | | Journal (issue) | | CONTENTS Page Feature Articles: The Coolgardie pegmatite field, Western Australia Mark I. Jacobson ......Mineralogy Vol 3, No 2, December 1997 %e Coo(gardie Pegmatite :fie[ïżœ 'Western .9Lustrafia Mark I. Jacobson Chevron...Lafayette, LA. 70593 California, USA This n otable Australian pegmatite locality has produced a range of...the Western Australian outback, an abundance of pegmatite fields stretch from the fiercely hot and arid...Cattlin Creek pegmatite field,near Ravensthorpe in the south. The Coolgardie pegmatite field, near the |  | | Journal (article/letter/editorial) | | 26 March 2015 Reading Pegmatites: PART 1 What BERYL Says DAVID LONDON ConocoPhilips School of Geology...environment in which they form. The series begins with beryl (fig. 1). Some Definitions Many of the finest mineral...Crystals of beryl, including some important associations with other minerals. (a) Beryl variety aquamarine...Pakistan; David London specimen and photo. (b) Beryl variety aquamarine with spessartine on albite and...Pakistan; Dan Weinrich specimen and photo. (c) Beryl variety morganite with âschorlâ on albite, 16.8 |  | | Journal (article/letter/editorial) | | Mines and Minerals of the California Pegmatite Province Downloaded by [Pennsylvania State University]...of the past century, the Southern California pegmatite province has been the source of some of the worldâs...(bottom left page). Map of the Southern California pegmatite province, including location of major specimen-producing...left). Beryl, variety aquamarine, 7.5 cm tall, Fano mine, Cahuilla Mountain, Riverside County. Bryant...Riverside County. Al and Betty Ordway specimen, Jeff Scovil photo. Figure 5 (above). Beryl, variety aquamarine |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Green Valley, AZ Donald R. Peacor University of Michigan Ann Arbor, MI Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents Miguel...Bishop copper prospect near Lynch Station, Campbell County, Virginia . . . . . . . . . . . . . . . . . . ...phosphate mineral from the Gold Quarry mine, Eureka County, Nevada . . . . . . . . . . . . . . . . . . . 237 |  | | Book | | variety, etc. T Tsumeb (vol. 8, no. 3) M y Michigan Copper Country (vol. 23, no. 2) Co. Company...five book-format issues (8/#3, Tsumeb; 23/#2, Michigan Copper Country; 23/#4, Yukon Phosphates; 24/#2...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 |  | | Journal (issue) | | Ural Mountains, Russia; Devilline from the Czech Republic; Duftite in Calcite from the Tsumeb mine, Namibia;...Nuristan, Afghanistan; Neptunite from San Benito County, California; Spinel from Mogok, Burma; and Emerald...the Coscuez mine, Colombia. OUTSIDE BACK COVER: Beryl crystals: heliodor (left), 5.4 inches, from Joerania...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 huÂŁ Tourmaline |  | | Journal (article/letter/editorial) | | Copyright © 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 â«č .00 Pergamon...beryllium and the crustal Be cycle from migmatite to pegmatite JOSEPH M. EVENSEN*â and DAVID LONDON School of...Boyd Street, 810 Energy Center, Norman, OK 73019, USA (Received July 18, 2001; accepted in revised form...â900°C), activity of Be in melt (trace levels to beryl saturation), bulk composition, and thermal run direction...coefficients are different at saturation of the melt in beryl: lower in the case of plagioclase of An31 (0.89 |  | London, D., Morgan, G. B., Paul, K. A., Guttery, B. M. (2012) Internal Evolution of Miarolitic Granitic Pegmatites at the Little Three Mine, Ramona, California, USA. The Canadian Mineralogist, 50 (4) 1025-1054 doi:10.3749/canmin.50.4.1025 | Journal (article/letter/editorial) | | PEGMATITES AT THE LITTLE THREE MINE, RAMONA, CALIFORNIA, USA David LONDON§, George B. MORGAN VI, Kerry A. PAUL...Boyd Street, Room 710 SEC, Norman, Oklahoma 73019, USA Abstract Miarolitic granitic pegmatites at the Little...Three mine property near Ramona, San Diego County, California, USA, possess a bulk composition that closely...the temperatures recorded by feldspars in the pegmatite that surrounds the miarolitic pockets, then the...compositions. Keywords: miarolitic, granitic pegmatite, modal analysis, bulk composition, alkali feldspars |  | | Journal (article/letter/editorial) | | 100 East Boyd Street, SEC 710 Norman, OK 73019, USA IP T *email: jlmaner87@ou.edu CR ABSTRACT Tourmaline...hambergite, danburite, and axinite from three pegmatite dikes (named Main, US Swamp, and Spessartine)...spessartine, muscovite, axinite, danburite, and rare beryl. The thicker Main dike culminates in cavities containing...patterns of ÎŽ11BTur from margin-to-core of each pegmatite attest to a negligible fractionation of boron...only the bulk isotopic US composition of the pegmatite-forming melts. KEYWORDS AC CE PT ED M AN |  | | 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. âą ;...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) | | $324/three years, (Canada) $186/one year, (outside USA other than Canada) $265 for one year Subscription...most famous among collectors for tourmaline and beryl in the 1960s, thanks to the discovery of extraordinary...with tourmaline, have sustained the Golconda pegmatite fieldâs reputation as among the most important...districts in all of Brazil. INTRODUCTION The Golconda Pegmatite Field is a familiar name to mineral collectors...for mica produced in Minas Gerais. A rich, new pegmatite deposit in the Brazilian Golconda area, best known |  | | 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...cm Eagleâs Nest Mine Sage Hill, Placer County California, USA Ex M. Pospisil Collection Photo Credit:...crystals of a wide range of other species including beryl, chrysoberyl, tourmaline, danburite, forsterite...hambergite, pollucite, topaz, quartz, aquamarine beryl and lepidolite (Hla Kyi et al., 2005). A second |  | | Book (volume) | | 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...morganite crystals, including one very pale pink beryl crystal, which though essentially of nongem quality...However, San Diego County, California, is arguably the most important gem-pegmatite district in North...Waterville, Maine Cranbrook Institute, Detroit, Michigan Bates Museum, Goodwill School, Fairfield, Maine |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...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...Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite specimens |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents Miguel...go to the Natural History Museum of Los Angeles County, where it is preserved today. (See âThe Mark Chance...including copper after calcite crystals from the Michigan copper country. New Jersey Earth Science Show |  | | Report (issue) | | Pegmatite Investigations 1942-1945 Black Hills, South Dakota By LINCOLN R. PAGE and OTHERS GEOLOGICAL...Descriptions, maps, and diagrams of deposits of mica, beryl, lithium, tantalum, tin, and feldspar UNITED STATES...Prospecting for mica.___________________________ Beryl deposits.-___.__-_-___--_--__--:_-__-__--_--__ Distribution..._____ Types of beryl deposits_-__-_-_-_--------------__ Structural features of beryl deposits..-.___________...___________________________________ Composition of beryl by J. W. Adams_-_-__-_ Size and grade_______-_- |  | | Report (issue) | | Helpful suggestions on field occurrences and pegmatite mineralogy were received horn Dr. James J. Norton...Allanite Uranophane (Cyclosilicates) W ollastonite Beryl Tourmaline Cordierite - Sorosilicates Hemimorphite...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...the Needles area. Runner (7) p 453. Pennington County: 1. Allanite occurs as microscopic inclusions in |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Green Valley, AZ Donald R. Peacor University of Michigan Ann Arbor, MI Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Correspondents Dudley Blauwet Louisville, Colorado...Colorado) and sediments (Green River Formation, USA; Lake Magadi, Kenya) (Bailey, 1980). Very rarely...et al., 1998); and the Gold Quarry mine, Eureka County, Nevada (Castor and Ferdock, 2003). At Mont Saint-Hilaire |  | | Book | | Roland Bouhelier in 1973 from the "Bouhelier pegmatite", and shortly thereafter acquired by the Canadian...Organic compounds 491 Partially studied and unnamed MSH minerals 494 Gemstones 514 Pseudomorphs...an accumulated repository of partially studied (unnamed) minerals. This is likely to continue for many...and partially studied and unnamed (UK) minerals. For the unresolved unnamed minerals, all available technical...data from his subsequent research. Dr. Peter Tice (USA) provided a copy of his M.Sc. and Ph.D. theses. Dr |  | | Report (issue) | | .. 42 ?. Muscovite in the vail zone of the pegmatite in tha Meadow mine, Avery Co. ..................area in the northeastern part of the Spruce Pine pegmatite district* on the Blue Ridge upland in western...eyton Bend l«»ortont outcrops **~^- Crtths X County lints, t«etpt along water court** Towns and eommualtios...Geological Sorvey Professional Paper describing pegmatite* in the Blue Iddge Province* In 1948, the general...eastern and southeastern border of the Spruce Pine pegmatite district. A detailed discussion of the scarp |  | | Report (issue) | | Plan map of the Copper Girl No. 1 mine, Torrance County . . . . . . . . . . . . 80 Figure 23 - Geologic...uranium occurrences in the Zuni Mountains, Cibola County . . . . . 82 Figure 24 - Photograph of mineralized... . . . . in pocket the Boyd prospect, San Juan County Figure 25 Figure 26 - Figure 27 - Photograph...beach-placer sandstone in the Torreon Wash area, Sandoval County . . 112 Uranium occurrences and mines in the...the White Signal district, Burro Mountains, Grant County . . . . . . . . . in pocket Figure 28 - Uranium |
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