 | | Journal (article/letter/editorial) | | petrogenesis of pegmatites in the Spruce Pine District, North Carolina, USA Samuel E. Swanson*, William B. Veal...recrystallization, include epidote, muscovite, quartz, and grossular garnet. A few of the pegmatites are more fractionated...other deep-seated systems) was probably related to the development of zones of water-enriched magma and...Introduction Pegmatites of the Spruce Pine Mining District in western North Carolina have a long history...Mississippian Culture (Townsend and Sharp 2004). Modern mining of mica began in the 1860‘s (Olson 1944) with the |  | | Journal (article/letter/editorial) | | italics; book reviews are placed at the end. Acid-mine drainage (AMD), relationships of soluble, suspended...of anthophyllite-gedrite from Simiuttat, Nuuk district, southern West Greenland, 937 AHMED-SAID,Y., 541...quartz-cordierite gneisses at Simiuttat, Nuuk district, southern West Greenland: composition, exsolution...silicate of the lawsonite structure type, from Woods mine, New South Wales, 369; solid solution and composi-...mineral of the lawsonite structure type, from Woods mine, New South Wales, Australia, 369 BARKOV.A., 973 |  | Runyon, Simone E., Nickerson, Phillip A., Seedorff, Eric, Barton, Mark D., Mazdab, Frank K., Lecumberri-Sánchez, Pilar, Steele-MacInnis, Matthew (2019) Sodic-Calcic Family of Alteration in Porphyry Systems of Arizona and Adjacent New Mexico. Economic Geology, 114 (4) 745-770 doi:10.5382/econgeo.4661 | Journal (article/letter/editorial) | | Wyoming 82071-2000, USA 2 Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch...Branch Rd. NW, Washington, D.C., 20015, USA 3 Lowell 4 Department Institute for Mineral Resources, Department...1040 East Fourth St., Tucson, Arizona 85721-0077, USA of Earth and Atmospheric Science, University of...Ninetysix Hills in Arizona and the Central mining district in New Mexico. These new occurrences are compared...deposit (Pima district), the Ajo mining district, the Tea Cup pluton (Kelvin-Riverside district), and the |  | | Book (edition) | | McDonald Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones...used mining districts as part of the locality description. These political and geographic district names...with a more descriptive term, metallic mineral district. This term shows the geochemical and mineralogical...reader to learn more about the geology of the district and to possibly predict the minerals that could...districts. Where possible, the metallic mineral district for each mineral locality is given for the mineral |  | | Book | | heat and pressure exerted over a very long time deep within the earth. Under the right conditions, geological...and caverns. But most geological activity occurs deep down beneath our feet, unseen by us, as Earth’s...be minerals. Microcline, Crystal Peak, Colorado, USA * 12 x 9x 5 om MINERALS: PRODUCTS OF A CHANGING...CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species Minerals...Many mineral crystals grow from molten rock (magma) deep inside Earth. The large, well-shaped crystals |  | | Report (issue) | | Connecticut, USA © 2008 by Lithographie, LLC P.O. Box 263 • East Hampton, CT 06424 • USA Phone 1.860...cm tall andradite on hematite is from the Wessels Mine near Hotazel in northern Cape Province, South Africa...Credits Cover: Grossular on diopside; 7.1 cm tall Jeffrey Mine, Asbestos, Richmond County, Quebec, Canada...surfaced. Immediately, we were asked about the gray area between cleaning and enhancing: Where, for example...Bibliotheque National de France, Paris Left: Grossular from the Republic of Mali (page 50); photo JeffScovil |  | Ryan-Davis, J., Lackey, J. S., Gevedon, M., Barnes, J. D., Lee, C-T. A., Kitajima, K., Valley, J. W. (2019) Andradite skarn garnet records of exceptionally low δ18O values within an Early Cretaceous hydrothermal system, Sierra Nevada, CA. Contributions to Mineralogy and Petrology, 174 (8) doi:10.1007/s00410-019-1602-6 | Journal (article/letter/editorial) | | Nevada within Sequoia National Park, California, USA reveal variable fluid chemistry with a significant...associated with Pb–Zn mineralization in the White Chief Mine. Laser fluorination oxygen isotope analyses of δ18O...91125, USA 2 Geology Department, Pomona College, 185 E. 6th Street, Claremont, CA 91711, USA 3 Department...Sciences, University of Texas, Austin, TX 78712, USA 4 Department of Earth Science, MS‑126, Rice University...77005, USA 5 WiscSIMS, Department of Geoscience, University of Wisconsin, Madison, WI 53706, USA Elemental |  | | Journal (issue) | | Cover Picture Faceted sapphire from Cyangugu district, SW Rwanda. See Investigations on sapphires from...Sapphires have been discovered in the Cyangugu district in south-west Rwanda (bordering Zaire) and details...characteristics are described. Most crystals are a deep blue but some show the milkiness characteristic...were first discovered in 1917 the deep blue beryls from the Maxixe mine in Brazil have been a source of...Abstract A new deposit of sapphires in the Cyangugu district of SW Rwanda has been investigated. The sapphires |  | | Journal (issue) | | Editorial Board written content: Pete J. Dunn Washington, DC Peter G. Embrey British Museum (N.H.) London...by M. C. Bandy Minerals of the Italian Mountain area, Colorado .................................... 75......103 by M. Hansen The libethenite zone, Burra mine, South Australia .................................R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University...this year a new mineral magazine made its debut: Magma. The editor and publisher is none other than Rainer |  | | Report (edition) | | chalcopyrite crystals etched calcite, from French Creek mines, (courtesy of John S. White) Back cover:...with cubic and octahedral cleavages, Pequea silver mine; middle left: azurite crystals on calcite, “old”...from the owners of the land, from the quarry or mine operators before entering to collect. (Land ownership...particular site, remember it is possible to visit the county courthouse in which the site is located, and trace...permitted us to use his historical photos of French Creek. John S. White, Jr. of the Smithsonian Institution |  | | Book | | 5 Crystallization 3 o chapter 6 G e m s from the Deep 3 6 chapter 7 Carbonatites: Unusual Rocks with Unusual...top of an even denser mantle, makes sense. From deep-sea submersibles scientists have been able to watch...exemplified off the east coast of Japan, where a deep-sea trench marks a zone of subduction. There a westward-moving...west coast of South America). rising granitic magma continental crust sediments oceanic crust mantle...much-denser rock, the less-dense, molten rock, known as magma, follows zones of weakness back toward the surface |  | | Book (edition) | | Wu!fenite. Red Cloud mine, Si/district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution...and Second Editions PART 2 HISTORY OF ARIZONA MINING AND MINERALOGY The Prehistoric Period 20 Arizona...Deposits 63 The Bisbee District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St...Mammoth-St. Anthony Mine, Tiger, Pinal County 78 Uranium and Vanadium Deposits 80 Monument Valley 81 - • Vll... The Cameron Area 85 Breccia Pipes 87 Pegmatites 88 "Mine Fire" Minerals, United Verde Mine, Jerome Arizona |  | | Journal (article/letter/editorial) | | Its sparse population is supported mainly by the mining industry, consisting of placer and lode gold deposits..., a distance of ap proximately 400 k m . The district is about 200 km from the border with Alaska and...Wrangell, Alaska, up the Stikine River to Telegraph Creek in the interior and then by pack-horse trail to...other points in the southern part of the Cassiar district. The completion of the Alaska Highway in 1943...Alaska Highway showing general topography of the area. JANUARY/FEBRUARY 1985 9 YLKON 3 • - 4 S |  | | Journal (issue) | | Collect with Care! ARIZONA WULFENITE Down Deep in the Rowley Mine GEM GARNETS Popular for Centuries THE...toxic. This 6 cm spray of needles is from the Herja mine (Baia Mare, Maramures), Romania. (Gerhard Brandstetter...in the Rowley................... 22 This Arizona mine is a specimen treasure trove Winter rockhounding...Notes New owners took possession of the Mary Ellen mine property on July 1, 2014 and no collecting is being...up or prices going up because dealers got into “mining” and specimen recovery which is spendy, so they |  | | Journal (article/letter/editorial) | | reflect decreasing pressure, presumably during magma ascent; (5) late crystallisation of garnet, at the...biotite and muscovite in granitic magmas, using the Northport monzogranite as a typical example, to elucidate...crystallising assemblage. 1. Geological setting The Northport monzogranite, previously described by Hogan (1984...the composition of whole rock samples from the Northport pluton are given in Hogan (1984, 1993) and are...are briefly summarised here. The Northport pluton is comprised predominantly of relatively homogeneous |  | | Book | | Fossil-Belemnite Soil-Greenwich Loam Series 29 30 31 * District of Columbia Dinosaur-Capitalsaurus fo, Fossil-Petrified...Stone-Amethyst Stone-Blue Granite 106 107 128 128 * Washington Gem-Petrified Wood Fossil-Columbian Mammoth ...Indexes * Vermont Soil-Tunbridge Series Gem-Grossular Garnet Rocks-Marble, Granite, Slate Mineral-Talc...state symbols have a unifying effect and bear a deep distinctive meaning. Beginning in the 1890s, representatives...world’s largest consumer of red iron ore. Iron ore mining ceased in Alabama in 1975 due to less costly imports |  | | Report (issue) | | Stockwork Molybdenum Deposit and Surrounding Area, Lander County, Nevada U.S. GEOLOGICAL SURVEY PROFESSIONAL...DEPOSIT AND SURROUNDING AREA, LANDER COUNTY, NEVADA FRONTISPIECE. Buckingham area. Group of buildings...Stockwork Molybdenum Deposit and Surrounding Area, Lander County, Nevada By TED G. THEODORE, DAVID W. BlAKE...GEOCHRONOLOGY OF SELECTED PLUTONS IN THE BUCKINGHAM AREA By EDWIN H. McKEE and a section on ECONOMIC GEOLOGY...COPPER ENVIRONMENT IN THE BATTLE MOUNTAIN MINING DISTRICT, NEVADA U.S. GEOLOGICAL SURVEY PROFESSIONAL | | | Book (edition) | | Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution...and Second Editions PART 2 HISTORY OF ARIZONA MINING The Prehistoric Period 20 Arizona Under Spanish...Deposits The Bisbee District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St.... Anthony Mine, Tiger, Pinal County Uranium and Vanadium Deposits 80 Monument Valley 81 63 78 il S:... The Cameron Area 85 Breccia Pipes 87 Pegmatites 88 “Mine Fire” Minerals, United Verde Mine, Jerome Arizona |  | | Journal (article/letter/editorial) | | correlation betweenthe oxidation states of granitic magma and those of related skarn-formingaqueoussolutions...solution is essentiallyderived from the granitic magma. In relatively shallow environments,the correlation...discussed below,thesedepositsformedin relatively deep environmentsseem to be related to the associatedgranitic...geneticclassificaits effusiveequivalentsover a wide area. They are tion of skarn depositsin Japan,basedon...each other in the latter skarn from the Yoshioka mine (27). Ab, albite; An, anorthite; Cc, calcite; Cz |  | | Report (volume) | | Superintendent of Documents Government Printi!lg omce Washington, D.C. 20402 (Check or money order must be payable...agents of the Superintendent of Documents: • WASHINGTON, D.C.--Main Interior Bldg., 2600 corridor, 18th...California--Customhouse, Rm. 504, 555 Battery St. • SPOKANE, Washington--U.S. Courthouse, Rm. 678, West 920 Riverside...Government UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1991 For sale by the Books and Open-File Reports...complexly zoned garnets from oxidized skarn, Surprise Mine, Nevada 16 Ternary diagrams showing ranges of garnet |  | | Report (issue) | | Tectonic Setting(s) Magmatic cumulates in elongate magma pockets along accreting plate boundaries. Associated...Norte Cty, CA Santa Helena, Antioquia, Colombia Goto Mine, Luzan, P.I. References Wells, F. G. et al 1946...Directions of plate motion From Dickey, 1975 xZone of magma segregation 1.2 DEPOSIT TYPE Zoned ultramafic...ore minerals. Alteration Diopside-hedenbergite+grossular-andradite+epidote. amphibole±chlorite±ilvaite...interstital. Alteration Mn-hedenbergite±andradite±grossular±spessartine±bustamite± rhodonite. Late stage |  | | Journal (issue) | | of Victoria Melbourne, Australia Pete J. Dunn Washington, DC Peter G. Embrey London, England Richard C...Famous mineral localities: the Gold Hill mine, Tooele County, Utah ..................................... S. Wise The Wagon Wheel Gap fluorspar mine, Mineral County, Colorado ....................................33 by B. Cairncross The Jan Coetzee copper mine, Namaqualand, South Africa .......................right of amateur col lecting and recreational mining, and the use of public and private lands for educational |  | | Report (issue) | | Resources A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Proceedings of the 31st Forum on...87801 SOCORRO, 1996 11 NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Daniel H. Lopez, President NEW MEXICO...ESSER, Lab Technician ROBERT W. EvELeth, Senior Mining Engineer NANCY S. GILSON, Assistant Editor KATHRYN...HOWARD B. NICKELSON, Carlsbad GLENN R. OSBURN, Washington Univ. ALLAN R. SANFORD, NMT JOHN H. Schilling...University of Texas at El Paso, El Paso, Texas 79968, USA Abstract—Industrial minerals and rocks in the tri-state |  | | | | surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized by the Internet Archive...Markham, ON L3R 4T8 In the United States: 311 Washington Street, Brighton, Massachusetts www.fitzhenry...derived deep in the earth where temperatures are high enough to form a liquid or magma. As the magma rises...the earth and EXTRUSIVE IGNEOUS ROCK OCEAN MAGMA BASIN « NATURE Canadz erupt as a volcano. An...brought about adjacent to a heat source like a magma chamber (for example, limestone heated and recrystallized |  | | Journal (issue) | | . 805 by R. M. Hazen The best grossular garnets from the Jeffrey mine, Asbestos, Quebec ........ ...................... 908 by A. Miglioli COVER: GROSSULAR crystals to 2.8 cm with pale green diopside on...and considered to be the finest known Jeffrey mine grossular specimen. Marco Amabili collection; James Elliott...(deceased) Eric D. Long SPONSORING ORGANIZATIONS Houston Area Mineral Society (HAMS) (2009-2014) Mineralogical...Lapis, extraLapis, Mineralien Welt, Der Aufschluss, Magma, Schweizer Strahler and the Munich Show Catalogs |
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