 | | Journal (issue) | | Collection of Jewels Digit Patterns in Opal Agate from Morocco Field Report on Oregon Sunstone Fall...129 138 On the Origin of Digit Patterns in Gem Opal Benjamin Rondeau, Jean-Pierre Gauthier, Francesco...Ethiopian opal, and proposes a multi-step model for its formation. 148 pg. 143 Agates from Sidi Rahal, in...in the Atlas Mountains of Morocco: Gemological Characteristics and Proposed Origin Magdalena Dumańska-Słowik...jadeite rock • Determining hydrophane nature of opal • Green sapphire, glass-filled • Large pinkish brown |  | Pršek, Jaroslav, Dumańska-Słowik, Magdalena, Powolny, Tomasz, Natkaniec-Nowak, Lucyna, Toboła, Tomasz, Zych, Damian, Skrepnicka, Dominika (2020) Agates from Western Atlas (Morocco)—Constraints from Mineralogical and Microtextural Characteristics. Minerals, 10 (2) 198 doi:10.3390/min10020198 | Journal (article/letter/editorial) | | minerals Article Agates from Western Atlas (Morocco)—Constraints from Mineralogical and Microtextural...the vicinity of Asni and Agouim (Western Atlas, Morocco) were investigated using microscopic observations... Minerals 2020, 10, 198 2 of 15 such as moganite, opal C, and coloring agents including hematite, goethite...found in Uruguay and Brazil (Rio Grande do Sul province). Less significant occurrences are found in nearly...nearly each country of the world [14]. Agates from Morocco, discovered in the 1940s, are considered quite |  | | Book | | Dominika Skrepnicka Agates from Western Atlas (Morocco)—Constraints from Mineralogical and Microtextural...of the Zhanguohong Agate from Beipiao, Liaoning Province, China: A Combined Microscopic, X-ray Diffraction...Distribution of Moganite and Opal-CT in Agates from Paleocene/Eocene Tuffs, El Picado (Cuba) Reprinted from:...articles devoted to detailed studies of agates from Morocco [3], China [4], Russia [5–7], and Cuba [8]. This...Atlas Morocco) and compare their results with previous studies of nearby localities Sidi Rahal and Kerrouchen |  | | Journal (article/letter/editorial) | | articles devoted to detailed studies of agates from Morocco [3], China [4], Russia [5–7], and Cuba [8]. This...Atlas Morocco) and compare their results with previous studies of nearby localities Sidi Rahal and Kerrouchen...Kerrouchen (Atlas Mountains, Morocco). The authors identified the similarities and differences between...between agates from these four localities in Morocco. They concluded that the possible sources of silica-bearing...studied Zhanguohong agates from Beipiao, Liaoning Province (China), hosted by intermediate-felsic volcanic |  | | Journal (article/letter/editorial) | | phases (macro-crystalline quartz, quartzine, opal-A, opal-CT, cristobalite, and moganite) [8]. Some common...copper and copper oxides in agates of the Norilsk region (Russia). This dispersion of micro grains of copper...in agates from Sidi Rahal and Kerrouchen (Khénifra Province, Meknés-Tafilalet Region), in the Atlas mountains...mountains of Morocco [26,27]. Moroccan agates occur within Triassic basaltoids as lens-shaped specimens...found in the central part of agate nodules from Sidi Rahal and were accompanied by idiomorphic quartz [26] |  | | Journal (issue) | | sussex mineral & lapidary society SMLS Visit to Morocco SMLS Competition 2013 · Display at Haywards Heath...Earth, Fort William and one of erythrite from Morocco. Judith Woodbridge Class 9a Photograph, where main...came from unusual locations such as the Fiorite opal from Santa Fiora, Italy . The strength of the display...commercially operated collecting site) 2015: Return to Morocco. We are exploring different possibilities, such...scientific appllcations - www.uvp.com SMLS VISIT TO MOROCCO April 2013 Part 1: An Overview! (Part 2 will cover |  | | Book | | ·: ·:. ,-i s ·:_· · : Bou Skour · EI Hammam Ghar el Anz Gourrama Haute Moulouya lmilchil !mini lmiter...die geologischen Hauptein- w ßou M (Pb heiten des Anti-Atlas und die hier befindlichen wichtigsten...marokkanischen ses Buches die äußerst mineralreiche Region in Nordafrika nicht wiedergeben. Mineralien aus...islamische Welt aus I 00 I Nacht am westlichen Ende des Maghreb eintaucht. Hier stoßen große Armut und traumhafter...Tier- und Pfl anzen- weit. Selbst die Geologie des Landes ist von Kontrasten geprägt. Nach heftigen |  | Götze, Jens, Stanek, Klaus, Orozco, Gerardo, Liesegang, Moritz, Mohr-Westheide, Tanja (2021) Occurrence and Distribution of Moganite and Opal-CT in Agates from Paleocene/Eocene Tuffs, El Picado (Cuba) Minerals, 11 (5) 531 doi:10.3390/min11050531 | Journal (article/letter/editorial) | | Distribution of Moganite and Opal-CT in Agates from Paleocene/Eocene Tuffs, El Picado (Cuba) Jens Götze 1...Distribution of Moganite and Opal-CT in Agates from Paleocene/Eocene Tuffs, El Picado (Cuba). Minerals 2021... Abstract: Agates in Paleocene/Eocene tuffs from El Picado/Los Indios, Cuba were investigated to characterize...characterized by abnormal high bulk contents of opal-CT (>6 wt%) and moganite (>16 wt%) besides alpha-quartz...Keywords: agate; alpha-quartz; chalcedony; moganite; opal-CT; Raman spectroscopy Publisher’s Note: MDPI stays |  | | Journal (article/letter/editorial) | | intercalated with macrocrystalline quartz, quartzine, opal-A, opal-CT, cristobalite and/or moganite. In addition...also known from the basalts of the Lake Superior region in the Warrawoona agate in Western Australia, was...also known from the basalts of the Lake Superior region inview the USA and Canada. A closer reveals that...agate from a trachyandesitic host‐rock of Xuanhua province, China); (e) hydrothermal from a trachyandesitic...trachyandesitic host-rock of Xuanhua (Hebei(Hebei province, China); (e) hydrothermal veinvein agate agate in metamorphic |  | Powolny, Tomasz, Dumańska-Słowik, Magdalena, Sikorska-Jaworowska, Magdalena, Wójcik-Bania, Monika (2019) Agate mineralization in spilitized Permian volcanics from “Borówno” quarry (Lower Silesia, Poland) – microtextural, mineralogical, and geochemical constraints. Ore Geology Reviews, 114. 103130 doi:10.1016/j.oregeorev.2019.103130 | Journal (article/letter/editorial) | | in paleobasalts from Rudno in the Lesser Poland Province (Krawczynski, 1995). In our contribution, a detailed...Carbonates (calcite and dolomite) found in the outer region of vein agates appear in two generations: (1) large...images obtained from quartz found in the outer region of vein agates show alternating CL-bright and CL-dark...silica matrix. These surfaces slightly resemble opal-CT blades (Lynne et al., 2007), but could be also...mostly massive zebraic chalcedony found in the outer region of the agate veins. The origin of feathery microtexture |  | | Journal (article/letter/editorial) | | 103º46W 116º17W 121º10W 106º16W Sidi Rahal, 50 km E Marrakech, Morocco Hayl as Safil massive sulfide deposit...Saxony, Germany Herdorf/Siegen, Germany Taouz, Morocco Tsumeb, Namibia Ray, Arizona Matagente, Cerro de...view 11 mm. (d) Filamentous, sulfide-containing opal obtained by dissolution of natrolite in hydrochloric...field of view 1.6 mm. (e) SEM image of filamentous opal with detail. FIG. 3. Sample of chalcedony occurring...orientation, from cavity in Mesozoic basalts, Sidi Rahal, Atlas, Morocco, NMBE 35064. (a) Hand specimen showing |  | Zhang, Xuemei, Ji, Lei, He, Xuemei (2020) Gemological Characteristics and Origin of the Zhanguohong Agate from Beipiao, Liaoning Province, China: A Combined Microscopic, X-ray Diffraction, and Raman Spectroscopic Study. Minerals, 10 (5) 401 doi:10.3390/min10050401 | Journal (article/letter/editorial) | | of the Zhanguohong Agate from Beipiao, Liaoning Province, China: A Combined Microscopic, X-ray Diffraction...Abstract: The Zhanguohong agate from Beipiao (Liaoning province, China), which occurs in the intermediate–felsic...silica phases (i.e., α-quartz, moganite, opal-CT, opal-C, and opal-A) [1–4], with minor impurities, such...done on the Zhanguohong agate in Xuanhua, Hebei province, including investigations of its microstructural...volcanic wall rocks in the Fuxin district, Liaoning province [29,33]. Similar conclusions were obtained, which |  | | Journal (issue) | | mit viel Liebe und Aufwand durch die Mitglieder des Vereins gestaltet wird, ist 2012 der Geschichte Freibergs...Vidar Ellingsen kürzlich durch die Beschreibung des mit der GyrolithBeyerit-Gruppe verwandten neuen Minerals...Fündig ra O 0 Nach Erscheinen des Artikels über die Mineralien des Hopffeldbodens (MW 6/11: 68-78)...deklariert.,, Vaterit ist daher von der Mineralienliste des Hopffeldbodens zu streichen. Nach freundlicher Mitteilung...damalige Analysenmethode, die zur Fehlidentifizierung des „Vaterits"führte, leider nicht mehr eruiert werden |  | Hulsbosch, Niels, Thomas, Rainer, Boiron, Marie-Christine, Dewaele, Stijn, Muchez, Philippe (2017) Direct Observation of Boro-Aluminosilicate Melt Compositions: Insights From Raman Spectroscopy of Melt Inclusions In Pegmatitic Tourmaline of the Gatumba-Gitarama Area (Rwanda) The Canadian Mineralogist, 55 (3) 377-397 doi:10.3749/canmin.1600093 | Journal (article/letter/editorial) | | Lorraine, CNRS, CREGU, GeoRessources, Boulevard des Aiguillettes B.P. 239 F-54506, Vandoeuvre lès Nancy...intrusions which are abundant in the African Great Lakes Region (Melcher et al. 2015). The Raman spectroscopic...after the ~1.0 Ga main compressional event in the region (Fernandez-Alonso et al. 2012, Debruyne et al....differentiates mogánite from other silica species (opal, quartz, agate, chalcedony, etc.; Dumanska-Slowik...resulting in compound spectra mixed in the 400–625 cm–1 region. Muscovite, dickite, quartz, and feldspar minerals |  | | Catalog/List | | Touissit, Touissit District, Oujda-Angad Province, Oriental Region, Morocco This is just a nice, reasonably intact...visit HA.com/5141 53010 HEMIMORPHITE Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa...Washington, USA Named in the 1850’s for the Autun region of Burgundy in France, Autunite is a commonly found...NATIVE BISMUTH Carmine Mine, La Union, Los Andes Province, La Paz Dept., Bolivia Most people’s acquaintance...Jegdalek Ruby Deposit, Surobi District, Kabol Province, Afghanistan For over 700 years the deposit at |  | | Journal (issue) | | gem-producing area. 2. An Unusual Pink Opal focuses on a 0.27 ct faceted opal with an orangey pink body colour...icglabs.org. It describes a non-resin type synthetic opal by Kyocera, profiles petalite as a collector’s gem...from Vietnam, a stability experiment on Ethiopian opal, colour-change garnets from Tanzania showing the...some newly produced ‘gem silica’ from the Arequipa region of southern Peru. This area is known to produce...Arizona, USA. Bauerreiß H., 1914. Zur Geschichte des spezifischen Gewichtes im Altertum und Mittelalter |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during...specimens were brought to the 2003 Tucson show. MOROCCO Imilchil area. Outcrops of episyenite and of contact-metamorphic |  | | Journal (issue) | | „Zirknitzer Diamanten" in Slowenien 42 Die Mineralien des Hopffeldgrabens im Obersulzbachtal, Pinzgau 49 ...außergewöhnlichen Leistungen mit dem Verdienstkreuz am Bande des Verdienstordens der Bundesrepublik Deutschland ausgezeichnet...Barzen überreichte die hohe Auszeichnung im Auftrag des rheinland-pfälzischen Ministerpräsidenten am 6.12...Es stellte sich heraus, dass die Grundprinzipien des ursprünglichen Vertrages in Frage gestellt und der...Situation mit Hotels bzw. Unterkünften? Schwab: Die Region von Colmar bietet eine große Auswahl an Überna |  | | Journal (volume) | | Tsumeb, Namibia 36 Mineralien aus der Umgebung des PfitscherJochs in Südtirol (II) 42 Die Quarzgänge...Getränke-Produkte von ralien-welt.de) zur Mitgestaltung des neuen Krügerhauses gefolgt Carolinen. Besonders witzig:...Weltgrößter geschliffener Citrin in Malaga Seit Anfang des Jahres 2010 bergen die Schatzkammern der „Programa...zugehörigen historischen Etiketten die Herkunft des Stückes nachvollziehen. Die Ausstellung ist montags...noch heute ein lebendiges Bild der glanzvollen Zeit des itterschen Kupferbergbaus. Wer war dieser Ludwig |  | | Book (edition) | | polished, 70 mm, Anjanabonoina, Madagaskar, G Page 5: Opal - fire, polished, 50 mm, Mezezo, Ethiopia, G Page...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga administrative region again. The...The former Kivu province is now divided to three regions: INTRODUCTION Nord-Kivu, Sud-Kivu, and Maniema |  | | Journal (issue) | | Mineralogische Neuigkeiten 12 Mineralien aus der Umgebung des Pfitscher Jochs in Südtirol (111/2) 16 Neue Mineralien...„mineralien hamburg". Nicht nur Kollegen aus der Region Idar-Oberstein, sondern auch Freunde und Bekannte...die Tat umgesetzt werden kann. Im speziellen Fall des soeben erschienenen Prachtbandes „Erlesene Achate...immer ganz leicht gefallen sein mag und der Umfang des Buches gegenüber den ursprünglichen Planungen wohl...Toubkal,Aouli, Bou Lili, Kerrouchen, Zaer-Zaiane, Sidi Rahal,Asni,Agouim,Al Hama kein Wunder, dass beim letztjährigen |  | | Journal (issue) | | •Aktuelles · News 2014 steht weltweit im Zeichen des ,,Jahres der Kristallographie". überall - in den...Artikel „TheTouissit-Bou Beker mining district,Morocco" im Mineralogical Record (Heft 6/2013) erhielten...größte zusammenhängende Waldgebiet Deutschlands. Die Region ist Rückzugsgebiet für seltene Tier- und Pflanzenarten...bei denen die unterschiedlichen Farbzonierungen des Minerals herausgestellt sind. Die grönländische Post...Sorte-Engel-Mine bei der Siedlung Maarmorilik. Beim Abbau des Marmors wurden hier in 600 m Höhe über dem Qaamarujuk-Fiord |  | | Book (volume) | | Formerly Editor of the Times of Morocco. Moorish Empire; Life in Morocco', &c. Mongols: Language. f Author...Miocene. I C. C. Charles Creighton, M.A., M.D. C. EL Sir Charles Norton Edgcumbe Eliot, K.C.M.G., C.B...1900-1904. *■ C. F. A. Charles Francis Atkinson. Morocco {in part). Mordvinians. [ Medal: War Decoration...University of Berlin. Author of Geschichte des Alterthums; Geschichte des alten Aegyptens; Die Israeliten und...; Morley, Viscount. f m . Art Critic, Gazette des beaux arts, Paris. H. F. B. Miller, Hugh. M.A |
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