 | Jirásek, Jakub, Matýsek, Dalibor, Alexa, Petr, Osovský, Michal, Uhlář, Radim, Sivek, Martin (2020) High Specific Activity of Radium Isotopes in Baryte from the Czech Part of the Upper Silesian Basin—An Example of Spontaneous Mine Water Treatment. Minerals, 10 (2) 103 doi:10.3390/min10020103 | Journal (article/letter/editorial) | | Baryte from the Czech Part of the Upper Silesian Basin—An Example of Spontaneous Mine Water Treatment... listopadu 15/2172, 708 00 Ostrava-Poruba, Czech Republic Department of Geological Engineering & ICT... listopadu 15/2172, 708 00 Ostrava-Poruba, Czech Republic; dalibor.matysek@vsb.cz Department of Physics...Ostrava-Poruba, Czech Republic; petr.alexa@vsb.cz OKD, a.s., ČSA Mine, ul. Čs. armády 1, 735 06 Karviná-Doly,... Czech Republic; michal.osovsky@okd.cz Department of Physics, Faculty of Electrical Engineering and Computer |  | | Journal (article/letter/editorial) | | hornoslezské pánve) Almandine-rich layers in the clastic sediments of the Saddle Member (Czech part of the Upper...Upper Silesian Basin) Jakub Jirásek1)*, Dalibor Matýsek2), Michal Osovský3) a Martin Sivek1) Institut...a.s., Důlní závod 1, lokalita Karviná, ul. Čs. armády 1, 735 06 Karviná-Doly 1) Jirásek J., Matýsek D...working districts Lazy and Doubrava near Karviná (Czech part of the Upper Silesian Basin). They are situated...conglomerates, and sandstones of the Saddle Member of the Karviná Formation (Namurian). Single garnet grains can |  | | Journal (article/letter/editorial) | | markers Stanislav VRÁNA Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic; stanislav.vrana@geology...contain (mol. %) 26–37 spessartine, 36.8–45.9 almandine, 11.1–14.3 pyrope and 2.9–21.0 grossular. Minor...accumulation of the volcanosedimentary column. In the Czech part of the Moldanubian Zone in the Bohemian Massif...the oldest recognised structural pattern in the Czech part of the Moldanubian Zone (Kodym 1972; Vrána...Localities of Mn-rich rocks in southern Bohemia, Czech Republic. magnetite, which occur in close proximity |  | | Journal (article/letter/editorial) | | Journal of the Czech Geological Society 50/34(2005) 95 Petrology and geochemistry of the Bìstvina...MILAN FIERA2 1 2 Czech Geological Survey, Klárov 3, 118 21 Praha 1, Czech Republic; vrana@cgu.cz National...Museum, Václavské nám. 68, 115 79 Praha 1, Czech Republic The high-pressure granulites from the Bìstvina...facies metamorphic imprint. 96 Journal of the Czech Geological Society 50/34(2005) Permian-Cretaceous...OES for REE determination (laboratories of the Czech Geological Survey, Prague). Mineral analyses were |  | | Journal (article/letter/editorial) | | Radmila NAHODILOVÁ Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic; stanislav.vrana@geology...Svratka Unit) and the Orlice–Sněžník Unit at the Czech–Polish border, which all have a record of Palaeo-Variscan...* * * * * * * * * * * * Moldanubian Zone Czech Republic +++++++ +++++++ * * * * * * * * * Bìstvina...Běstvina Unit is exposed on a 20 m high cliff in the Doubrava River valley c. 400 m 162 west of the village...by wet chemical methods in the laboratory of the Czech Geological Survey, Prague. Minor and trace elements |  | Nahodilová, Radmila, Štípská, Pavla, Powell, Roger, Košler, Jan, Racek, Martin (2014) High-Ti muscovite as a prograde relict in high pressure granulites with metamorphic Devonian zircon ages (Běstvina granulite body, Bohemian Massif): Consequences for the relamination model of subducted crust. Gondwana Research, 25 (2) 630-648 doi:10.1016/j.gr.2012.08.021 | Journal (article/letter/editorial) | | Department, Czech Geological Survey, 11821 Praha 1, Czech Republic Center for Lithospheric Research, Czech Geological...Geological Survey, 11821 Praha 1, Czech Republic c Ecole et Observatoire des Sciences de la Terre, Institut...Geology, Charles University, 12843 Praha 2, Czech Republic b a r t i c l e i n f o Article history:...Machek et al. (2009) and Faryad (2009) studied the Doubrava garnet–peridotite body and the enclosing granulite...Institute of Geosciences, Masaryk University (Brno, Czech Republic) in point beam mode at 15 kV and 10–15 nA. |  | | Journal (issue) | | UK Jaroslav Hyršl Nathan Renfro Prague, Czech Republic Carlsbad, California gia.edu/gems-gemology...species of pyrope, almandine, spessartine, pyrope-almandine, pyrope-spessartine, and almandine-spessartine....dominantly composed of the pyrope (Mg3Al2Si3O12), almandine (Fe2+3Al2Si3O12), and spessartine (Mn3Al2Si3O12)...with inclusions provided by Todd Wacks, Jason Doubrava, Jeff Hapeman, and Meg Berry, some of which are...mol.% end members Pyrope Grossular Spessartine Almandine Uvarovite Goldmanite Schorlomite-Al Remainder |  | | Journal (issue) | | Association, Idar-Oberstein; Jaroslav Hyršl, Prague, Czech Republic; Brian Jackson, National Museums Scotland,...blood ruby, royal blue and cornflower sapphire, old mine/ Muzo green emerald, sunrise and sunset padparadscha...spinel (Figure 4b), spessartine (Figure 4c), almandine, quartz, zircon, apatite, topaz, sillimanite,...Kyaukme District of northern Shan State, approximately 18 km southeast of Mogok (Figure 3). The region is...The source of much of this pyrite is the Huanzala mine in west-central Peru, which has probably yielded |  | | Journal (issue) | | in opal • Trapiche-like ruby from the Batakundi mine in Kashmir • Sapphire inclusion with rutile “silk”...Moonstone jewelry • Oregon sunstone • Potentate mine sapphire update • “Rainbow lattice” feldspar • Responsibly...Aaron Palke Christopher M. Welbourn Prague, Czech Republic Carlsbad, California Reading, UK Dorrit...Bicolored elbaite tourmalines (5–8 ct) from the Himalaya mine in Southern California are set with yellow diamonds...BD -S1 Black oxy-schorl in granitic rock; Czech Republic BD-S2 Dark bluish dravite coexisting with |  | | Journal (issue) | | GEMOLOGICAL INSTITUTE OF AMERICA Canada’s Diavik Mine Fabergé Imperial Bodyguards Responsible Sourcing...of Colored Stones Journey to the Chivor Emerald Mine Summer 2016 VOLUME 52, No. 2 EDITORIAL 103 Responsible...Mining Diamonds in the Canadian Arctic: The Diavik Mine James E. Shigley, Russell Shor, Pedro Padua, Christopher...Rainier’s Footsteps: Journey to the Chivor Emerald Mine Robert Weldon, Jose Guillermo Ortiz, and Terri Ottaway...adventures of Peter W. Rainier, who directed the mine from 1926 to 1931 and restored its former glory |  | | Journal (issue) | | Beryl Crystals | Morganite from Numbi, Democratic Republic of the Congo | Colour-Change Garnet Showing Blue...emerald deposit was discovered in 2021 in the Chitral region of north-western Pakistan. Following an earlier...Shaokui Pan Comparison of Emeralds from the Chitral District, Pakistan, with other Pakistani and Afghan Emeralds... Bangkok, Thailand Jaroslav Hyršl Prague, Czech Republic Menahem Sevdermish Gemewizard Ltd, Ramat Gan...as Beads for Necklaces Although the Benitoite Gem mine in California, USA, has been closed since 2005 (Laurs |  | | Journal (issue) | | Sudarat Saeseaw San Diego, California Prague, Czech Republic Bangkok, Thailand Edward W. Boehm Dorrit...rare volcanic glass found only in the Glass Buttes region of Oregon. Lastly, we invite you to join the G&G...recorded in the ultraviolet/visible/near-infrared region contained characteristic bands at 369, 381, 475...in the Thong Nhat district of Dong Nai Province (figure 3) in the southeast region of GEMS & GEMOLOGY...16’ 23” Vinh Cuu District N 11˚ 6’ 33” 11˚ 6’ 33” 107˚ 3’ 20” Trang Bom District 11˚ 1’ 48” 11˚ |
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Doubrava Mine, Doubrava, Karviná District, Moravian-Silesian Region, Czech Republic