 | | Journal (article/letter/editorial) | | minerals in alluvial placers from Limbach, Bratislava Massif, Western Carpathians, Slovakia: compositional... Comenius University, Mlynská dolina, 842 15 Bratislava, Slovak Republic; puher@fns.uniba.sk 2 Eastern... Comenius University, Mlynská dolina, 842 15 Bratislava, Slovak Republic * Corresponding author 1 Niobium-tantalum...pegmatite origin was found in alluvial placers near Limbach, the Bratislava granitic massif, Malé Karpaty...Mountains, Central Western Carpathians, southwest Slovakia. The most widespread mineral is ferrocolumbite |  | Uher, P., Chudík, P., Bačík, P., Vaculovič, T., Galiová, M. (2010) Beryl composition and evolution trends: an example from granitic pegmatites of the beryl-columbite subtype, Western Carpathians, Slovakia. Journal of GEOsciences, 55 (1) 69-80 | Journal (article/letter/editorial) | | beryl-columbite subtype, Western Carpathians, Slovakia Pavel UHER1,2*, Peter CHUDÍK2, Peter BAČÍK1, Tomáš...Comenius University, Mlynská dolina G, 842 15 Bratislava, Slovakia; puher@fns.uniba.sk Department of Mineral...Comenius University, Mlynská dolina G, 842 15 Bratislava, Slovakia Department of Chemistry, Faculty of Science...granodiorites of the Bratislava and Bojná massifs, Tatric Unit, Central Western Carpathians (SW Slovakia). Beryl represents...granitic pegmatites of the West-Carpathian province, Slovakia (Uher 1994), represent a typical example of the |  | Chudík, Peter, Uher, Pavel, Gadas, Petr, Škoda, Radek, Pršek, Jaroslav (2011) Niobium-tantalum oxide minerals in the Jezuitské Lesy granitic pegmatite, Bratislava Massif, Slovakia: Ta to Nb and Fe to Mn evolutionary trends in a narrow Be,Cs-rich and Li,B-poor dike. Mineralogy and Petrology, 102 (1) 15-27 doi:10.1007/s00710-011-0163-9 | Journal (article/letter/editorial) | | the Jezuitské Lesy granitic pegmatite, Bratislava Massif, Slovakia: Ta to Nb and Fe to Mn evolutionary trends...dike intruding biotite granodiorites near Bratislava, SW Slovakia. The dike shows enrichment in beryl (locally...Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia e-mail: chudik@fns.uniba.sk P. Uher Department...Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia P. Gadas : R. Škoda Department of Geological...Jezuitské Lesy granitic pegmatite near Bratislava, SW Slovakia, contains a variety of Nb-Ta oxide minerals |  | | Book | | Eduardo Zappettini Enigmatic Alluvial Sapphires from the Orosmayo Region, Jujuy Province, Northwest Argentina:...Sutherland, Martin Danišı́k, Glenn Poirier, John W. Valley and Ralph Rowe Zircon Xenocrysts from Cenozoic.... . . . . . . . . 347 Harald G. Dill Gems and Placers—A Genetic Relationship Par Excellence Reprinted...Cr-Bearing Andradite (var. Demantoid) from Dobšiná, Slovakia Reprinted from: Minerals 2019, 9, 164, doi:10...important sources (i.e., Afghanistan (Panjsher Valley), Brazil (Itabira), Colombia (Coscuez), Ethiopia |  | | Journal (article/letter/editorial) | | minerals Article Gems and Placers—A Genetic Relationship Par Excellence Harald G. Dill Mineralogical...kunzite, kyanite, peridote, pyrope, rhodolite, spessartine, (chrome) titanite, spinel, ruby, sapphire, padparaja...absence of heavy metals), can also appear in some placers and won for a profit (agate, amethyst, citrine...trap-site of gemstones (residual, eluvial, colluvial, alluvial, deltaic, aeolian, and marine shelf deposits)...that matter during accumulation of gemstones in placers are their intrinsic value controlled by the size |  | | Journal (article/letter/editorial) | | pegmatitu Bratislava Jezuitské lesy (Slovensko) Minerals and geochemistry of the Bratislava - Jezuitské...Jezuitské Lesy granitic pegmatite (Slovakia) Pavel Uher1)* a Peter Chudík2) 1) Katedra mineralógie a petrológie...Univerzita Komenského, Mlynská dolina G, 842 15 Bratislava, Slovensko; *e-mail: puher@fns.uniba.sk 2) Hurbanova...(2014) Minerály a geochémia granitového pegmatitu Bratislava - Jezuitské lesy (Slovensko). Bull. mineral.-petrolog...22, 2, 281-292. ISSN 1211-0329. Abstract The Bratislava - Jezuitské Lesy granitic pegmatite forms a relatively |  | | Report (issue) | | from mineros working in the Venezuelan Guayana region (Engineering and Mining Journal, 1987; Hennius...mined to the present are in the El Callao mining district (no. 37 on map). The El Callao mine was the most...that potential gold reserves in the El Callao district are about 84,000 kg from 4.6 x 106 mt with an...gold-bearing quartz veins are present in the El Callao district. These veins cut Early Proterozoic meta-igneous...characterizes the mineralization in the El Callao district. The Kilometer 88 (nos. 99, 100, and 104) and |  | | Book (edition) | | Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL If marked in description... Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia (sample: Melcher/Oberthür); PPL D Fine-grained...grey); Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany (sample: Seifert);...contact metamorphic deposits, • pegmatites, • placers not known Altaite, Ankerite, Argentite, Arsenopyrite...quartz (dark grey); New Bullfrog Mine, Bullfrog District, Nye Co., Nevada, USA (sample: Witzke); PPL If |  | | Book (edition) | | sedimentary and metamorphic rocks and in residual and alluvial deposits. Special attention was paid to localities...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g.... canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country names...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing |  | | Journal (article/letter/editorial) | | arborescent nugget comprises a broad irregular core region of massive auriferous Pd–Hg alloy (potarite; ␦-PdHg)...that of palladian gold, potarite and platinum in alluvial sediments and overburden from Devon, England,...g., Cabri et al. (1996) reported platinum from placers in Canada and Russia]. The bulk Pd contents of...palladian gold, potarite (PdHg) and platinum in alluvial sediments and overburden from Devon, England (Leake...sediments were too delicate to withstand significant alluvial transport, and supported the diagenetic hypothesis |  | | Journal (article/letter/editorial) | | the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope...make a contribution to the cultural heritage of a region and may successfully be used in exploration (Mascaro...two years. The economic potential of a particular region or mining camp can be deduced from the economic...about 50% of them concentrated in the Steelpoort region of the eastern Bushveld Complex. Stratiform deposits...Chromite is a heavy mineral common to many beach and alluvial–fluvial placer deposits (Hokkaido, Japan, Great | | | Journal (article/letter/editorial) | | the Alpine region, and (3) Mid-Triassic to early Jurassic extension in the extra-Alpine region. Isotope...make a contribution to the cultural heritage of a region and may successfully be used in exploration (Mascaro...two years. The economic potential of a particular region or mining camp can be deduced from the economic...about 50% of them concentrated in the Steelpoort region of the eastern Bushveld Complex. Stratiform deposits...Chromite is a heavy mineral common to many beach and alluvial–fluvial placer deposits (Hokkaido, Japan, Great |  | | Journal (issue) | | cabochon quality from Brazil • Spessartine and almandine-spessartine from Afghanistan • Gem tourmaline...known as northern Mozambique. The specimens were alluvial in origin, and at least one of the stones was...specifically the inset showing the 1358–1000 cm−1 region). This was surprising, since green luminescence...peak at 4165 cm−1 was visible in the near-infrared region of the spectrum (again, see figure 2), indicating...nitrogen clearly dominating the A-aggregates. The region between at least 5000 and 4165 cm −1 comprises |  | | Journal (article/letter/editorial) | | and muscovite. Accessory minerals are mainly spessartine, zircon, cassiterite, Nb-Ta oxides, This is...Slavkov ore district (René and Š oda 20 or in ongoites from t e Xiang ualing tin district Huang et al...lav ov ore district Ren and Š oda 2011) or in ongoites from the Xianghualing tin district (Huang et al...ongonite–topazite composite dike at the Xianghualing tin district, Southern China: An electron-microprobe study...granitic pegmatites of La Canalita, Navasfrías Sn-W District, Salamanca, Spain. Canadian Mineralogist, 48, |  | | Journal (issue) | | for many varieties of gemstone raw material. This region is now distinguished independently as the Timannorth...carried out. At present, опе of diamoпdifer ous placers in the Middle Timan has Ьееп prepared t·ог exploitation...prospecting for new deposits is being carried out iп the region. Agate is best known as an orпamental stone. Deposits...undoubtedly promising. Discovery ofnew deposits in the region is quite рrоЬаЫе, becaL1seMezoCenozoic weathering...determine the character of tl1e peasant economy of this region, these matters lent specific featшes to local life |  | | Report (issue) | | manganotantalite crystals from Moolyella, Pilbara region. Simpson Collection, Western Australian Museum......................................... 21 Alluvial placers ............................................................................... 22 Marine placers ........................................................................................... 26 Alluvial and marine placer deposits ............................................................... 36 Alluvial mining ...................................... |  | | Journal (issue) | | northwest India and described in early reports as "the region beyond the snows," the locality is so remote that...outsiders were strictly forbidden to enter the Paddar region of Kashmir until 1979, Dr. Kothavala's earlier...avalanches are frequent in this geologically active region. It is clear from various letters and communications...elationsliip to the nining districts o f the l u n z a Valley and iadakhshan. Artwork Christine Wilson. of several...Pass (5,290 m ) in order to reach Sumjam, in the valley of Paddar, these merchants were at first skeptical |  | | Thesis/Dissertation | | TR ClI- 27 THE ALLUVIAL DIAMOND DEPOSITS OF THE LOWER VAAL RIVER BETWEEN BARKLY WEST AND THE VAAL-HARTS...between diamond deposits along the Vaal River, alluvial Barkly West and the Vaal-Harts confluence, have... quality composition, for the directions placers in the economic concentration of An investigation...into account climate, the level of erosion, Alluvial the tectonic the by channel width and diamond...INTERMEDIATE HOSTROCKS 2~4 FLUVIAL, MARINE -AND EOLIAN PLACERS PRE-CENOZOIC 1 GEOLOGY 8 3.1 I NTRODUCTI |  | | Book | | rhodonite, rubellite, morganite, kunzite; orange— spessartine; yellow—ganophyllite. Iron: blue—lazulite, indigolite;...when it was mainly obtained from depos- its of alluvial type. Ancient Egyptians mined gold as early as...weathering, accumulates as secondary deposits in alluvial material. Primary deposits originate as a result...deposits. Tiny platelets of gold in geologically old alluvial deposits became part of sedimentary rocks in which...layers of comparatively large extent, such as alluvial de- | posits at Witwatersrand, South Africa. Apart |  | | Journal (issue) | | (samples of these crystals from kimberlites of this region were kindly submitted to the author by Yana Bao...the search for ruby deposits. For example, the placers of the Svetlinskoye Field in the Southern Urals...reveal the rubies. Our field crew worked in this region in 1986 and suggested that the geologists use an...as visible aggregates which are of interest fora region-mineralogical collection (crystals, dtuses of crystals...almandine (x1), grossular (x1), ругоре (?), spessartine, uvarovite; kyanite; melilite; merwinite (?); |  | | Journal (issue) | | Nhung Although not as well known as the Luc Yen district, this area is an important source of ruby and...Freshwater cultured pearl beads • Quartz with spessartine inclusions • Pink cat’s-eye quartz • Rhodochrosite...years, Vietnam’s Yen Bai Province, and the Luc Yen District in particular, have been widely known for producing...thrived, with many companies operating in the region (Voi, 1991). Other gem occurrences near Khoan Thong...Road River or lake Province Pr ovince boundary District boundary are located on the east side of the |  | | Book | | Rainwater Flowing Surface Water Alluvial Placers Placer Deposits Beach Placers Metallogenic Provinces and...Specimens of willemite and calcite from the Franklin district of New Jersey in the United States may show brilliant...in the Al2O3SiO2(Al2SiO5) system. The term phase region is used when a mineral exhibits compositional variation...presence (or absence) of a reaction rim, which is a region separating two or more minerals consisting of the...transportation, the political stability of the region, and market factors such as the price of the metal |  | | Book | | rhodonite, rubellite, morganite, kunzite; orange- spessartine; yellow-ganophyllite. Iron: blue-lazulite, indigolite;... when it was mainly obtained from deposits of alluvial type. Ancient Egyptians mined gold as early as...weathering, accumulates as secondary deposits in alluvial material. Primary deposits originate as a result...deposits. Tiny platelets of gold in geologically old alluvial deposits became part of sedimentary rocks in which...layers of comparatively large extent, such as alluvial deposits at Witwatersrand, South Africa. Apart | | | Book | | rhodonite, rubellite, morganite, kunzite; orange- spessartine; yellow-ganophyllite. Iron: blue-lazulite, indigolite;... when it was mainly obtained from deposits of alluvial type. Ancient Egyptians mined gold as early as...weathering, accumulates as secondary deposits in alluvial material. Primary deposits originate as a result...deposits. Tiny platelets of gold in geologically old alluvial deposits became part of sedimentary rocks in which...layers of comparatively large extent, such as alluvial deposits at Witwatersrand, South Africa. Apart |  | | Book (volume) | | 4025/6942 4810/13050 Krai Buryat Kitelya, Northern region Kiyalykh-Uzen', 5030/10320 ASSR Ladoga 6141/3120...Trans-Ili S. Kazakhstan Deputat, 5335/14019 Lena region Darasun, 5220/11520 5020/10320 Chukotka Antonovogorsk...East, Balkhash ca 5035/13700 region Aldan Lovozero, Kola region Peninsula Kazakhstan Malo-Kholtoson... 2 5121/11744 Ca 5035/13700 Alatau Yenisei region Spokoinyi, Eastern Transbaikalia Taseeva, Tyrnyauz...deposit 64 (64) 67 basin placers Kuznetsov of and R.V. (Lena Region) the Belogorsk 67 gold-bearing |
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