 | 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...Abstract: Agate samples collected from the vicinity of Asni and Agouim (Western Atlas, Morocco) were investigated...papers, there are still some problems concerning agate nomenclature, classification, and formation, which...completely solved. From a textural point of view, agate represents a banded chalcedony, which incorporates...mineralogical/petrographical approach assumes that agate can be considered as a rock that consists mainly |  | | Book | | Yuanming Pan Mineralogy, Geochemistry and Genesis of Agate—A Review Reprinted from: Minerals 2020, 10, 1037.... . . . . 5 Terry Moxon and Galina Palyanova Agate Genesis: A Continuing Enigma Reprinted from: Minerals...Dominika Skrepnicka Agates from Western Atlas (Morocco)—Constraints from Mineralogical and Microtextural...Characteristics and Origin of the Zhanguohong Agate from Beipiao, Liaoning Province, China: A Combined Microscopic,...source of the silica required for the growth of agate remains largely unknown. The first known descriptive |  | | Journal (issue) | | OwnAgate Collecting around Kremmling Colorado Morocco - The Country, The People and...Agates By Holger...2014 Cover Image: “Saturn’s Rings” Inclusions in Agate Photo and Collection of Tom Shearer 3 Agates and...ancient times, the question concerning the genesis of agate is still in discussion today. Both in historic and...a lot of data about certain agate occurrences or specific aspects of agate formation have been published...genesis of agates. 7 The results document that agate formation is a very complex and often a multi-step |  | | Journal (article/letter/editorial) | | source of the silica required for the growth of agate remains largely unknown. The first known descriptive...exists today. The complex, multi-step process of agate formation is not yet completely understood. The...articles devoted to detailed studies of agates from Morocco [3], China [4], Russia [5–7], and Cuba [8]. This...summarizes the results of extensive studies on agate samples of different origin and type. This article...entire spectrum of agate problems. Götze et al. [1] provide a preliminary model of agate formation. According |  | Svetova, Evgeniya N., Chazhengina, Svetlana Y., Stepanova, Alexandra V., Svetov, Sergei A. (2021) Black Agates from Paleoproterozoic Pillow Lavas (Onega Basin, Karelian Craton, NW Russia): Mineralogy and Proposed Origin. Minerals, 11 (9) 918 doi:10.3390/min11090918 | Journal (article/letter/editorial) | | Karelian Craton, NW Russia): Mineralogy and Keywords: agate; Raman spectroscopy; X-ray powder diffraction; electron...(https:// creativecommons.org/licenses/by/ 4.0/). Agate and chalcedony are varieties of silica that are...and characterised by uniform colouration, whereas agate is defined as banded or patterned chalcedony [1]...porosity and water content [3,4]. The most common agate shades are caused by Fe, Mn, Co, Cr, and some other...within the silica matrix [7–9]. Black varieties of agate are rare and have been described from a few occurrences |  | | Book | | actual field visit to a particular flood basalt province to understand its physical and volcanological...of a specialist researcher familiar with that province. However, time and funding constraints mean that...topic one might want to see from a flood basalt province. Chapters range from landscapes and geomorphology...Department, Cadi Ayyad University, Marrakech, Morocco e-mail: chell@uca.ma xiii xiv Raymond A. Duraiswami...Bibhas Sen Geological Survey of India, North Eastern Region, Shillong, Meghalaya, India e-mail: bibhas.sen@gmail |  | | Journal (issue) | | Rauchquarz und Rosaquarz. Manfred Wild aus der Edelstein-Region Idar-Oberstein lässt diesen „Mythos" mit einer...des Bergbaus immens hemmte. Mit der Übernahme der Region durch Preußen im Jahre 1815 bekam der Bergbau im...Giusep auch auf eines der Vorzeigemineralien der Region - den Axinit. So fand er bereits Ende der 1950er-Jahre...nordwestlich von Antofagasta auf der Halbinsel Mejillones, Region Antofagasta, Chile. Die Lagerstätte besteht aus...nach der Ankunft waren wir Condor-Achaten aus der Region Men- wieder in der altbekannten Tucson-Rou- doza |  | | Journal (issue) | | „mineralien hamburg". Nicht nur Kollegen aus der Region Idar-Oberstein, sondern auch Freunde und Bekannte...Lili, Kerrouchen, Zaer-Zaiane, Sidi Rahal,Asni,Agouim,Al Hama kein Wunder, dass beim letztjährigen US-amerikanischen...dem Thema „Die Wiege der Säugetiere aus unserer Region". Sie zeigt mit Fauna und Flora das Umfeld der...Bezirken Krasnoarmejski, Korkinski und Uwelski der Region Tscheljabinsk wurde der Ausnahmezustand ausgerufen...neuen violetten Apatit-Kristalle aus der Karibib-Region. Die Farbe der Kristalle variiert von Hellviolett |  | | Book (edition) | | 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...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing |  | | Book | | the eruption of the Central Atlantic magmatic province. More than one bolide impact occurred during the...Lawrence H. Tanner 4 The Central Atlantic Magmatic Province (CAMP): A Review............ Andrea Marzoli, Sara...Sciences-Semlalia, Cadi Ayyad University, Marrakesh, Morocco Instituto Dom Luiz, Faculdade de Ciências, Universidade...(1869: 127) named the Norian Stage for the Roman province of Noria, which was south of the Danube and included...Bavarian Alps. The name was either for the Roman province of Rhaetium or the rätische Alpen. No type locality |
|
Agouim, Ighrem N'Ougdal Caïdat, Amerzgane Cercle, Ouarzazate Province, Drâa-Tafilalet Region, Morocco