 | | Journal (article/letter/editorial) | | fractionation in rare-metal granites: Krásno-Horní Slavkov ore district, Czech Republic Miloš René & Radek Škoda ...Nb-Ta-Ti-bearing oxide minerals (Nb-Ta-bearing rutile, columbite-group minerals) represent the most common Nb-Ta...related rocks from the Krásno-Horní Slavkov ore district. Tungsten-bearing columbite-(Fe), W-bearing ixiolite...ixiolite, wodginite and tapiolite-(Fe) are extremely rare in these rocks. Rutile contains significant levels...represented mostly by columbite-(Fe) and rarely by columbite-(Mn), with Mn/(Mn+Fe) ratio ranging from 0 |  | | Journal (article/letter/editorial) | | Sciences of the Czech Republic, V Holešovičkách 41, 182 09 Prague 8, Czech Republic; rene@irsm.cas.cz;...Abstract: Oxide minerals (Nb–Ta-rich rutile, columbite-group minerals and W-bearing ixiolite) represent...and also topaz- and Li-mica-bearing granite. Columbite group minerals occur usually as euhedral to subhedral...represented by columbite-(Fe) with Mn/(Mn + Fe) ratio ranging from 0.07 to 0.15. The rare Fe-rich W-bearing...needle-like crystals. The ixiolite is Fe-rich with relatively low Mn/(Mn + Fe) and Ta/(Ta + Nb) values (0.10–0 |  | | Journal (article/letter/editorial) | | respect to abundances of Zr, Hf, REE, Y, P, Th, Ca, Al, Fe and As. According to their geochemical signatures...Sciences of the Czech Republic, 182 09 Prague 8, V Holešovičkách 41, Czech Republic e-mail: rene@irsm...axial NE–SW plane, oriented about parallel with the Czech–German border is part of the Saxothuringian Zone...Sachsenhöhe, Krupka). The Horní Slavkov–Krásno ore district comprises mineralized topaz-bearing granite...from the Hub stock in the Horní Slavkov–Krásno ore district and six representative samples from zinnwaldite- |  | | Journal (article/letter/editorial) | | rare-element class. Moreover, abundant cassiterite and columbite-group minerals crystallized in the Cruz del Rayo...Complex. Cassiterite, rutile, ilmenite and tantalite-(Fe) occur disseminated in the border facies of the External...del Rayo: (i) granite-like pegmatites, with columbite-(Fe) I and II and cassiterite, in which the influence...tantalite-(Fe), and (ii) greisen-like bodies, which contain high amounts of columbite-(Fe), columbite(Mn),...crystallization of the secondary assemblage, richer in Fe and Ta, is interpreted mainly as a consequence of |  | | Journal (article/letter/editorial) | | minerals Article Occurrence and Composition of Columbite-(Fe) In the Reduced A-Type Desemborque Pluton, Graciosa...Published: 4 May 2020 Abstract: Columbite-(Fe) is a post-magmatic accessory mineral occurring...within both the rocks, named columbite-1 and columbite-2. The columbite-1 type is characterized by zoned...Nb-rich cores with low Ta/(Ta + Nb) and Mn/(Mn + Fe) ratios (0.02–0.08 and 0.17 to 0.21 apfu, respectively)...Mn/(Mn + Fe) ratios (from 0.14 to 0.22) relative to the former cores. On the other hand, the columbite-2 type |  | | Journal (article/letter/editorial) | | Al(H2O)6 octahedra and interstitial H2O molecules. The Fe octahedra, decorated with SO4 tetrahedra, form infinite...having continuous infinite chains of alternating Fe(1) and Fe(2) octahedra that are involved in corner-sharing...between Fe octahedra. Coquimbite the “chains” does not have infinite chains, but short triplets of Fe octahedra... Nevada, U.S.A., and the Krásno ore district, Horní Slavkov, Czech Republic. The host rocks of iangreyite...barite, quartz, and F-rich perhamite. The Krásno ore district is represented by greisen mineralization |  | Macdonald, Ray, Bagiński, Bogusław, Kartashov, Pavel M., Zozulya, Dmitry, Dzierżanowski, Piotr, Jokubauskas, Petras (2015) Hydrothermal alteration of a chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage: interaction with a F-, CO2-rich fluid. Mineralogy and Petrology, 109 (6) 659-678 doi:10.1007/s00710-015-0394-2 | Journal (article/letter/editorial) | | chevkinite-group mineral to a bastnäsite-(Ce)-ilmenite- columbite-(Fe) assemblage: interaction with a F-, CO2-rich...syenitic pegmatite from the Vishnevye Mountains, Urals Region, Russia. The progressive alteration of the chevkinite...chevkinite to a bastnäsite-(Ce)-ilmenite-columbite-(Fe) assemblage through a series of texturally complex...occurrence represents a new paragenesis for a columbite-group mineral. Editorial handling: A. Beran Electronic...documented increases in Ti and reductions in REE and Fe resulting from interaction between chevkinite-(Ce) |  | | Journal (article/letter/editorial) | | of accessory minerals: montebrasite, columbite-(Mn), columbite(Fe), tantalite-(Mn), Ta-bearing cassiterite...to 150 m in association with tantalite-(Mn), columbite-(Mn), and cassiterite. According to the content...deposits in Algeria, Egypt, Spain, China, and the Czech Republic [5–16]. As industrial minerals, WGMs are of...(containing cassiterite; columbite; tantalite; phosphates of Li, Al, Ca, and Cu; and columbite; tantalite; phosphates...Ca, and Cu; and sulfides of Fe, Sn, and Cu) forms sulfides of Li–Ta–Sn Fe, Sn, and Cu) forms the Kester |  | | Book (edition) | | overgrowth by its darker colour that relates to its higher Fe content and its hexagonal shape, while it is completely...end-member compositions; another example is Mg and Fe in olivine. Crystallographic System & Point Group...comparison of all data (observation wave lengths vary considerably from one publication to the next)....to darker brown internal reflections) in a massive Fe-poor sphalerite (orange internal reflections), jordanite...rutile, and ulvöspinel separating from ilmenite). Fe-, Cu-, and Ag-containing sulfides are even more out |  | Xie, Lei, Wang, Ru-Cheng, Che, Xu-Dong, Huang, Fang-Fang, Erdmann, Saskia, Zhang, Wen-Lan (2016) Tracking magmatic and hydrothermal Nb–Ta–W–Sn fractionation using mineral textures and composition: A case study from the late Cretaceous Jiepailing ore district in the Nanling Range in South China. Ore Geology Reviews, 78. 300-321 doi:10.1016/j.oregeorev.2016.04.003 | Journal (article/letter/editorial) | | study from the late Cretaceous Jiepailing ore district in the Nanling Range in South China Lei Xie, Ru-Cheng...study from the late Cretaceous Jiepailing ore district in the Nanling Range in South China, Ore Geology...study from the late Cretaceous Jiepailing ore district in the Nanling Range in South China PT Lei Xie... ACCEPTED MANUSCRIPT Abstract The Jiepailing mining district in the Nanling range in South China is well-known...we have studied SC RI here, using mineral (columbite, rutile, wolframite, cassiterite, zircon, and |  | | Book | | the same passion for minerals and the NE Bavarian region. The Oberpfalz was his home and my adopted country...Bohemian Massif, which is shared by Germany, the Czech Republic, Poland and Austria, has been focused on these...the principal techniques of deep geophysics, this region enables us to look at the origin of pegmatites...to find new profitable mineral deposits in the region are not very promising and mining in Germany is...with much success. The Hagendorf-Pleystein mining district consists of several pegmatites and aplites, including |  | Guastoni, Alessandro, Secco, Luciano, Škoda, Radek, Nestola, Fabrizio, Schiazza, Mariangela, Novák, Milan, Pennacchioni, Giorgio (2019) Non-Metamict Aeschynite-(Y), Polycrase-(Y), and Samarskite-(Y) in NYF Pegmatites from Arvogno, Vigezzo Valley (Central Alps, Italy) Minerals, 9 (5) 313 doi:10.3390/min9050313 | Journal (article/letter/editorial) | | Masaryk University, Kotlarska 2 CZ 611 37, Brno, Czech Republic; rskoda@sci.muni.cz (R.Š.); milangeo@seznam...square antiprism, is occupied by Y, REE, Ca, U, Th, Fe, while the six-fold coordinated B-site has a typical...Fe2+structure , and Fe3+ , although some studies placed Fe Ti can occupy 2+, and Fe3+, although some studies...the B-site and Ti mostly occupied by REE, Ca, U, Fe both sites [5]. The A-site in samarskite is occupied...non-metamict samarskite-(Y) from Eifel volcanic region, Germany, revealed a unique cation-ordered niobate |  | Pauliš, Petr, Kopecký, Stanislav, Dolníček, Zdeněk, Sejkora, Jiří, Pour, Ondřej, Ulmanová, Jana, Kopecký, Stanislav jun. (2022) Wolframová a sulfidická hydrotermální mineralizace z Pekelského vrchu u Jihlavy (Česká republika) [Tungsten and sulphidic hydrothermal mineralization from Pekelský vrch near Jihlava (Czech Republic)]. Bulletin Mineralogie Petrologie, 30 (1) 73-94 | Journal (article/letter/editorial) | | mineralization from Pekelský vrch near Jihlava (Czech Republic) Petr Pauliš1,2)*, Stanislav Kopecký3), Zdeněk...younger generation of ferberite. The Ti,W-rich columbite-(Fe) is an accessory phase associated with younger...found there. Key words: ferberite, scheelite, columbite, joséite, gustavite, native bismuth, electrum...a columbitu byly měřeny obsahy Al, As, Ca, Cr, F, Fe, Mg, Mn, Mo, Na, Nb, P, Pb, S, Sc, Si, Sn, Ta, Ti...W, Y a Zr, v korundu a andalusitu Al, Ca, Co, Cr, Fe, Mg, Mn, Na, Ni, P, Pb, Sb, Si, Ti, V a Zn, ve slídách |  | Amuda, Abdulgafar Kayode, Li, Shuang, Yang, Xiaoyong, Cao, Jingya, Faisal, Mohamed (2022) Genetic Association between Granites and Mineralization at the Gindi Akwati Cassiterite–Sulfide Deposit, North-Central Nigeria: Insights from Mineralogy, Fluid Inclusions, and Sulfur Isotopes. Minerals, 12 (6) 761 doi:10.3390/min12060761 | Journal (article/letter/editorial) | | Precambrian Older Granite around the Gindi Akwati region at the Ropp complex’s western boundary, northcentral...sequestrate, transport, and deposit ore metals (Sn, Zn, Fe, and Cu) locally within the greisenized granites...various metals (Nb, Mn, Sn, Ta, W, Zn, and Cu with Fe) in the greisen [2–4]. The growing Minerals 2022...biotite granites, which contain cassiterite and columbite-(Fe) as accessory phases in greisen and metasomatic...petrogenesis and tectonic setting of the granites in this region. We also constrain the mechanism responsible for |  | | Book | | transmission IR spectra of minerals in the far IR region. The PE discs are prepared at rather high temperatures...root-mean-square approximation of the spectrum in the region free of strong absorption. A review of the most...analysis for the IR spectrum of gmelinite-K in the region of Si–O-stretching vibrations carried out with...analysis for the IR spectrum of gmelinite-K in the region of Si–O-stretching vibrations carried out with...analysis for the IR spectrum of gmelinite-K in the region of Si–O-stretching vibrations carried out with |  | | Journal (article/letter/editorial) | | information gathered through times on Pb–Zn- and Fe deposits in several monographs in the “Geologische...NaFeSi2O6 (Ce,Ca,Fe)(Ti,Nb)2(O,OH)6 Fe7.6Ni0.4O6.4(OH)9.7Cl1.3 MnS NaAlSi3O8 BeAl2O4 (Ce,Ca,Y)2(Al,Fe)3(SiO4)3(OH)...XY2Z5(Si, Al, Ti)8O22(OH, F)2 X = K, Na, Y = Fe Ca, Mg, Mn, Zn, Z = Fe, Mn, Al, Ti NaAl(Si2O6)·(H2O) TiO2 SrCe(CO3)2(OH)·(H2O)...SrCe(CO3)2(OH)·(H2O) Al2SiO5 PbSO4 CaSO4 Cu1.75S Ca(Mg, Fe)(CO3)2 Ni3 (AsO4)2.8H2O CaAl2Si2O8 (Na,K)AlSi3O8...Pd2.25Pt0.75Sn (Mg,Al)2Si4O10(OH)·4H2O (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 AuSb2 Ca(UO2)2(PO4)2·12(H2O) Ca | | | Journal (article/letter/editorial) | | information gathered through times on Pb–Zn- and Fe deposits in several monographs in the “Geologische...NaFeSi2O6 (Ce,Ca,Fe)(Ti,Nb)2(O,OH)6 Fe7.6Ni0.4O6.4(OH)9.7Cl1.3 MnS NaAlSi3O8 BeAl2O4 (Ce,Ca,Y)2(Al,Fe)3(SiO4)3(OH)...XY2Z5(Si, Al, Ti)8O22(OH, F)2 X = K, Na, Y = Fe Ca, Mg, Mn, Zn, Z = Fe, Mn, Al, Ti NaAl(Si2O6)·(H2O) TiO2 SrCe(CO3)2(OH)·(H2O)...SrCe(CO3)2(OH)·(H2O) Al2SiO5 PbSO4 CaSO4 Cu1.75S Ca(Mg, Fe)(CO3)2 Ni3 (AsO4)2.8H2O CaAl2Si2O8 (Na,K)AlSi3O8...Pd2.25Pt0.75Sn (Mg,Al)2Si4O10(OH)·4H2O (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 AuSb2 Ca(UO2)2(PO4)2·12(H2O) Ca |  | | Journal (volume) | | of Szeged On the cover: Map of the Carpathian region with type localities of new mineral species, rocks...Mineralogical-Geochemical Branch tional na MA ion Inter at Czech Geological Society I ral ine ogi l Assosi Croatian...(Hungary) (Hungary) (Romania) (Hungary) (France) (Czech Republic) (Croatia) (Hungary) (Poland) (Slovenia) (Bulgaria)...(Poland) (Italy) (Czech Republic) (Romania/USA) (Germany) (Hungary) (Russia) (Czech Republic) (Japan) (Germany)...History of mineralogy: The role of the Carpathian region in the 18th century........................... |
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