 | | Book | | Vojany, Slovakia) Head of the Department of Natural History, Eastern Slovak Museum, Košice He finished...His Ph.D. study was at the Technical University, Košice (1992). Until 1990, he worked at the Dionýz Štúr...(1983). Ph.D. study at the Technical University, Košice (2000). Since 1980, he was employed in the Herman...Poland (Ewa Kos/.owska) Romania (Gheorghe Udubasa) Slovakia (Rudolf Duda) Ukraine (Orest Matkovs'ky) 31 31...(Ewa Kos/.owska). Romania (Gheorghe Udubasa), Slovakia (Rudolf Duda). Ukraine (Victor Kvasnytsya) 127 |  | | Journal (article/letter/editorial) | | Athens, Greece Bahrain Institute for Pearls & Gemstones (DANAT), WTC East Tower, P.O. Box 17236 Manama...on another occurrence of sapphires in the same region of the South Urals occurring in anorthosites (kyshtymites)...evolution of alluvial sapphires from the Orosmayo region (Jujuy Province, NW Argentina) and importantly...from serpentinized harzburgites situated in Dobšiná, Slovakia. Curtis et al. [33] in their work reviewed...Issue. Danat (Bahrain Institute for Pearls & Gemstones) is also thanked for providing one of the images |  | | Journal (article/letter/editorial) | | minerals in listvenite from the Muránska Zdychava, Slovakia: products of hydrothermal metasomatic transformation...Slovenské Rudohorie Mts. (Veporic Superunit, central Slovakia). The main rock-forming minerals of the listvenite...tectonically less affected listvenites could be used as gemstones or decorative stones (Simic et al. 2013). Small...in ultrabasic rocks of the Western Carpathians, Slovakia. They occur in Palaeozoic (pre-Carboniferous)...Superunit), in North-Gemeric structural zone (Dobšiná, Mlynky, Rudňany, Veľký Folkmár, Košická Belá, |  | | Journal (article/letter/editorial) | | Formations. Minerals 2021, 11, 825. Keywords: gemstones; demantoid; inclusions; the Urals https://doi...[9], the United States of America, China [10], Slovakia [11], Namibia [12], and Madagascar [13,14]. Figure...operating distance of 10 mm. Raman spectra in the region of 100–1000 cm−1 were obtained in back-scattering...these cracks are a sign of heat treatment of the gemstones. The “horsetail” inclusions on the polished facets...cracks are a sign of heat treatment of the 7 of 13 gemstones. The “horsetail” inclusions on the polished facets |  | | Book | | Institute for Pearls & Aristotle University of Gemstones (DANAT) Thessaloniki Bahrain Greece Ian Graham...image courtesy of Bahrain Institute for Pearls & Gemstones (DANAT). c 2020 by the authors. Articles in this...Enigmatic Alluvial Sapphires from the Orosmayo Region, Jujuy Province, Northwest Argentina: Insights...Cr-Bearing Andradite (var. Demantoid) from Dobšiná, Slovakia Reprinted from: Minerals 2019, 9, 164, doi:10...Athanasios Katerinopoulos and Andreas Magganas Gemstones of Greece: Geology and Crystallizing Environments |  | | Journal (issue) | | Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...belonged to mining companies based in the Brad region. Today, it is owned by S.C. “MINVEST” S.A. Deva...more than 2000 year old mining activity in the region. 2. Collections and exhibitions The expositional...(about 80% of the specimens originate in the Brad region, especially Musariu and Brădişor deposits). The...unit. For instance, in BradSăcărâmb metallogenic district, the Au:Ag ratio is relatively uniform (45% to |  | | Journal (issue) | | Cat’s-Eye Emeralds from Colombia | Euchroite from Slovakia | Properties of Green Fluorite from England Showing...Stefanos Karampelas Bahrain Institute for Pearls & Gemstones (DANAT), Manama Alan T. Collins King’s College...jewellery topics, ranging from understanding coloured gemstones to women’s participation in the jewellery supply... WHAT’S NEW • The Bahrain Institute for Pearls and Gemstones (DANAT; Manama, Bahrain) has webinars on natural...and coloured diamond grading; colour trends in gemstones during pre- and post-COVID-19 times; and grading |  | | Journal (issue) | | Manakana, which is the name historically used for the region encompassing the pegmatitic districts on the west...Koivula, J.I. 1986. Photoatlas of Inclusions in Gemstones. ABC Edition, Zurich, Switzerland, 532 pp. Pezzotta...mineral, notably as pieces large enough for use as gemstones. THE JOURNAL OF GEMMOLOGY, 38(1), 202 2 7 GEM...the Adelaide or Red Lead mines in Dundas, Zeehan District). The following properties were recorded: colour—orange;...pluton, at the Vanov quarry near Telč in the central part of Moldanubicum Zone. This quarry is located about |  | | Journal (article/letter/editorial) | | into ore minerals, industrial minerals/rocks and gemstones/ornamental stones. Further information on the...and rocks . . . . . . . . . . . . . . 2.3.3. Gemstones and ornamental stones . . . . . . . . . . . ....concerned. It is mandatory, when dealing with gemstones in a paper like that, that the common minerals...to give an idea how the different varieties of gemstones differ from each other. 2.2. The host of mineral...the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope | | | Journal (article/letter/editorial) | | into ore minerals, industrial minerals/rocks and gemstones/ornamental stones. Further information on the...and rocks . . . . . . . . . . . . . . 2.3.3. Gemstones and ornamental stones . . . . . . . . . . . ....concerned. It is mandatory, when dealing with gemstones in a paper like that, that the common minerals...to give an idea how the different varieties of gemstones differ from each other. 2.2. The host of mineral...the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope |  | | Journal (article/letter/editorial) | | enriched in rare metals such as Li, Be, Nb, Ta and gemstones like topaz, aquamarine and colorful tourmaline...mineralization and it is located within a Central European region well studied as to its economic geology, as shown...to noncarbonate hosted mineral deposits in the region, the rare earth element contents (REE) are used...Sb-Au veins in the Brandholz-Goldkronach Mining District prevalently are oriented N-S, NNE-SSW, NE-SW and...in ultrabasic igneous rocks is a novelty for the region (Aral, 1989; Firstova et al., 2016). The Sb-sulfosalts |  | | Journal (volume) | | of Szeged On the cover: Map of the Carpathian region with type localities of new mineral species, rocks...Mineralogical Society of Romania Geological Society of Slovakia, Mineralogical-Geochemical Branch Eötvös Loránd...(Romania) (Romania) (Austria) (Croatia) (Hungary) (Slovakia) (Greece) (Hungary) (USA) (Hungary) (Egypt) (Austria)...(Hungary) (Hungary) (Hungary) (Croatia) (Hungary) (Slovakia) (Serbia) (South Africa) (Austria) (France) (Hungary)...(Hungary) (Hungary) (Croatia) (UK) (Slovakia) (USA) (Austria) (Romania) (Slovakia) (China) (Germany) (Poland) |
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