Uher, Pavel, Žitňan, Peter, Ozdín, Daniel (n.d.) Pegmatitic Nb-Ta oxide minerals in alluvial placers from Limbach, Bratislava Massif, Western Carpathians, Slovakia: compositional variations and evolutionary trend. Journal of Geosciences, 52 (1-2) 133-141 doi:10.3190/jgeosci.007

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	Fernandes, J., Moura, A. (2017) Metallographic and in situ compositional study on columbite–tantalite mining concentrates from placers at Maçainhas (Central-East Portugal): insights for tantalum exploration. Journal of Iberian Geology, 43 (3). 439-450 doi:10.1007/s41513-017-0029-z	Journal (article/letter/editorial)
	compositional study on columbite–tantalite mining concentrates from placers at Maçainhas (Central-East Portugal):...century, the Portuguese Gaia-Maçainhas Sn–Ti–Ta placers were important tin and tantalum producers in Europe...compositions identified are columbite-(Mn) and columbite(Fe), but Fe- and Mn-tantalites are also important minerals...phases occur as small inclusions in columbite–tantalite and consist of cassiterite, zircon, struverite...rocks which crop out a few kilometers from the placers. & A. Moura ajmoura@fc.up.pt 1 Department of
	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)
	Lesy granitic pegmatite, Bratislava Massif, Slovakia: Ta to Nb and Fe to Mn evolutionary trends in a...dike intruding biotite granodiorites near Bratislava, SW Slovakia. The dike shows enrichment in beryl (locally...Ta# [Ta/(Ta + Nb)] =0.52−0.70 (Ct I columbite-tantalite), 0.88−0.90 (Tap I ferrotapiolite) and 0.73−0...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
	Neiva, Ana M.R., Gomes, Carlos L., Silva, Paulo B. (2015) Two generations of zoned crystals of columbite-group minerals from granitic aplite–pegmatite in the Gouveia area, central Portugal. European Journal of Mineralogy, 27 (6) 771-782 doi:10.1127/ejm/2015/0027-2473	Journal (article/letter/editorial)
	Ti content and Ta/ (Ta þ Nb) ratio and a lower Mn/(Mn þ Fe) ratio than the first generation. The second...22 23 24 1. Introduction Zoning of columbite–tantalite minerals from granitic pegmatites has been studied...Ercit, 2005). un 1 rre Key-words: columbite; tantalite; zoning pattern; microveinlet; overgrowth; aplite;...paper reports a detailed study of zoned columbite–tantalite crystals from the Gouveia area. Backscattered-electron...characterize different types of zoning of columbite–tantalite crystals. This paper reports on progressively
	Pohl, W. L., Biryabarema, M., Lehmann, B. (2013) Early Neoproterozoic rare metal (Sn, Ta, W) and gold metallogeny of the Central Africa Region: a review. Applied Earth Science, 122 (2) 66-82 doi:10.1179/1743275813y.0000000033	Journal (article/letter/editorial)
	W) and gold metallogeny of the Central Africa Region: a review W. L. Pohl1, M. Biryabarema2 and B....significance in the Central Africa or Great Lakes region, i.e. gold, tin, tantalum and tungsten, are part...author, email walter@walter-pohl.com 66 A wide region* in Central Africa is marked by abundant tin, tantalum... W) and gold metallogeny of the Central Africa Region Provinces of the Democratic Republic of the Congo...molybdenite, beryl and amblygonite were byproducts. The region is geologically known as the intracontinental Mesoproterozoic
	*Pracejus, Bernhard - Ed.* (2014) The Ore Minerals Under the Microscope (2nd ed.) Elsevier. doi:10.1016/c2012-0-01360-9**	Book (edition)
	brownish grey; 12.00 Internal Twinning Reflect. Tantalite-(Fe) Melanovanadite yellow to yes orange near...Ilmenorutile Powellite Davidite(Ce, La, Y) Tapiolite-(Mn) Sphalerite Wurtzite Groutite Wolframite Thorianite...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);
	*Voudouris, Panagiotis, Karampelas, Stefanos, Melfos, Vasilios, Graham, Ian - Eds.* (2020) Mineralogy and Geochemistry of Gems. MDPI. doi:10.3390/books978-3-03928-077-3**	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
	Laznicka, Peter - Ed. (1985) Empirical Metallogeny: Depositional Environments, Lithologic Associations and Metallic Ores - Phanerozoic Environments, Associations, and Deposits - Developments in Economic Geology No. 19B. Elsevier. doi:10.1016/c2013-0-11844-2	Book
	"Broadly regarded, the depth ta which a metalliferous region has been eroded affects its present characteristics...same manner in which detrital heavy minerals in placers are enclosed in the sediments with which they formed...Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay)...LITHOTHEQUE. • + ▼ • Cu(Mo) porphyry, vein Zn,Pb,Mn veins (Butte) Au,Ag,Zn,Pb veins minor U TOP LEFT:...about 120 Tt Pb, 476 t Au (much of it from gulch placers) and 2.5 Tt Ag, from about 15 ore fields or districts
	*(2020) Interesting Papers in Other Journals. Economic Geology, 115 (3). 689-694 doi:10.5382/econgeo.115.3.ip01*	Journal (article/letter/editorial)
	skarn-porphyry Cu-Au-Fe deposit, eastern Transbaikal region, Russia: Genetic implications—V.A. Kovalenker,...depression and modern alluvial placers of the Krasnovishersky district (Ural region)— E.A. Vasilev, I.V...biotite from the Lizaizhai pegmatite (Guangning ore district, Guangdong, south China): Identification of a...gold deposit, Hutti-Maski schist belt, Raichur district, Karnataka, India—C.G. Nevin and H.S. Pandalai...titanowodginite, microlite, pyrochlore, columbite-(Mn) and tantalite-(Mn) in flux-rich haplogranitic melts between
	*Laznicka, Peter - Ed.* (1985) Phanerozoic Environments, Associations and Deposits - Developments in Economic Geology No. 19A. Elsevier. doi:10.1016/c2013-0-11843-0**	Book
	"Broadly regarded, the depth to which a metalliferous region has been eroded affects its present characteristics...same manner in which detrital heavy minerals in placers are enclosed in the sediments with which they formed...Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay)...from LITHOTHEQUE. • Cu(Mo) porphyry, vein ^Zn,Pb,Mn veins (Butte) ▼ Au,Ag,Zn,Pb veins • minor U TOP LEFT:...about 120 Tt Pb, 476 t Au (much of it from gulch placers) and 2.5 Tt Ag, from about 15 ore fields or districts
	Raith, J.G., Melcher, F. (2014) Pegmatite – erste österreichische Arbeitstagung an der Montanuniversität Leoben (11. April 2014) – Zusammenfassungen der Beiträge. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 160.	Journal (article/letter/editorial)
	granites is reviewed. Members of the columbite-tantalite group are the most common and economically important...1989). Especially the members of the columbite-tantalite, tapiolite, wodginite and ixiolite groups share...solution members of the orthorhombic columbite-tantalite group with the general formula AB2O6 (A = Fe2+...endmembers are columbite-(Fe), columbite-(Mn), tantalite-(Mn) and tantalite-(Fe). Their composition is traditionally...traditionally expressed as molar ratios #Mn = 100Mn/(Mn+Fe) and #Ta = 100Ta/(Ta+Nb), and plotted in the “columbite
	*(2010) 20th General Meeting of the International Mineralogical Association 21–27 August, 2010 Budapest, Hungary. Acta Mineralogica-Petrographica, Abstract Series* Vol. 6. University of Szeged**	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)