 | | Journal (issue) | | mineral localities: Knappenwand, Untersulzbachtal, Austria .................................................EPIDOTE from Knappenwand, Untersulz bachtal, Austria. (See the article in this issue, p. 167.) The specimen...Illustrated m ining history: C oeur T he Cliff: Am erica’s First Great Copper M ine LJ d’A lene, Idaho...high as some fine miniatures. The collector may “see” a high-fashion thumbnail waiting to be liberated...approval of the editor. Suggestions for authors See Vol. 16, no. 2, p. 105, or write for copy. Back Issues |  | | Journal (issue) | | and a History of Emerald Mining in Habachtal, Austria Duncan Pay FEATURE ARTICLES p. 300 292 Blue...of Emerald Mining in the Habachtal Deposit of Austria, Part I p. 347 Karl Schmetzer Contributes to...sales of pink and blue diamonds from the Argyle mine • Chalcedony-epoxy composite imitation of “candy...of articles on all aspects of the field. Please see the Author Guidelines at gia.edu/gemsgemology or...and a History of Emerald Mining in Habachtal, Austria Welcome to the Winter 2021 issue of Gems & Gemology |  | | Journal (issue) | | (Teil 2) Mineralien aus dem Gabbro-Dioritsteinbruch „Am Buch" bei Lindenfels, Odenwald Neues aus Norwegen...Mai) folgen Freizeigen, daß es immer wieder berg am 19. und 20. Juni, wo Neuigkeitengibt-manmußhalt man...Mines werden, neues Material zu or- im schönen Elsaß am letzten dern. Da wird es dann schon Juni-Wochenende...TGMS-Clubs, der vor 45 Jahren mit einer Handvoll am Tausch interessierter Sammler den Stein ins Rollen...Rollen brachte. Aber Sammler sind ohnehin nur ganz am Rande gefragt oder zu sehen, das Angebot richtet sich |  | | Report (issue) | | Memoir No. MINES If THE GEOLOGY OF THE WARMBAD DISTRICT SOUTH WEST AFRICA An Explanation of Geological...following report on the Geology of the \Xlarmb:id District - 1v1emoir No. 2, S.W.A. - written by Dr. S. H...following pages is that portion of the \Xiarmbad District of South \'...area ( with the exception of the lead::::bearing district of Aiais) nor of the detailed mapping of the pre...the little water obtained is sc'llty; and the district is very sparsely inhabited. The centre of the |  | | Journal (article/letter/editorial) | | E-mail address: osinski@lycos.com. 0012-821X/$ - see front matter D 2004 Elsevier B.V. All rights reserved...3=Rauhwinkel, 4=Doos creek channel, 5=Hermannsberg, 6=Hochfeld, 7=Heerhof. Note that outcrops of polymict crystalline...37 mm. The beam diameter was ~1 Am, with a beam penetration of ~2–4 Am, depending on the analysed phase... 5.2. Textures Cavities ranging in size from b50 Am to ~2 mm are ubiquitous in the Ries impact melt rocks...which display the distinctive dballenT texture (see text for details). (B,C) Sanidine-rich groundmass |  | | Book | | Rehoboth The Central and South-CentralDeposits Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin...natural science museums in the World, and our Tsumeb Mine has been labeled the "World's greatest mineral locality"...World's largest hard-rock tin mine and the World's largest open pit uranium mine. Geotourism and collecting...the work of Hermann Niesz, a mining engineer and mine surveyor from Freiberg.HermannNieszwas the first...yourselfbecaptivatedbythe world of these magnificent minerals and I am confident that the wonderful variety of minerals |  | | Book | | in 1-m-thick grey shale layers at the Klein Aub Mine (2% copper, 50 ppm silver, up to I ppm gold and...copper-silver deposit of the now abandoned Oamites mine {HohewarteMetamorphic Complex) (Lee and Glenister...Tutura), mid fluorite (Miiller's Mine) midvolcanogeniccopper(Ubib Mine)occur in the Abbabis Metamorphic...with very minor beryl and li1hium(Tantalite Valley Mine). Rose quartz occurs on the farms Mikberg 262 and...SandamapErongo, Nainais-Kohero and Cape Cross-Uis (Uis Mine - 60 million t, 0.13% tin). A belt of post-tectonic |  | | Book | | Grootbergpaß in Namibia Kamphaugit-(Y) von der Rössing-Mine 120 124 126 136 Das Gahnit-Vorkommen von Okahua...Kaokozone des Damara-Gürtels. Die Aufnahme entstand am Ugab-Revier. Foto Schneider. wurden begleitet von...haben hier geologische Geschichte und Plattentektonik am Beispiel des berühmten Damara-Orogens studiert. Ein...Kupfer-Lagerstätten , wie zum Beispiel die Otj ihase-Mine, sind an den oben beschriebenen mittelozeanischen...niedrig-gradige Uran-Vererzungen ; heutzutage ist die Rössing-Mine einer der größten Uranerz- ~ - / 'A TIO .AL |  | | Book | | citation: “It is only with the heart that one can see rightly; What is essential is invisible to the eye...grown exponentially as has the need for minerals (see Fig. 1.1 and Fig. 1.2). Fossil fuels maintain the...in the 20th century The Earth has become a huge mine. The 2010 global demand for minerals was 45,000...copper, manganese, zinc, chromium, lead, titanium, 2 See: Institute for Mineral Information, (2011). Available...need for energy alternatives, are not prepared to see them in their backyard. At the same time, more materials |
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