 | Atencio, D., Filho, R. R. C., Mills, S. J., Coutinho, J. M. V., Honorato, S. B., Ayala, A. P., Ellena, J., de Andrade, M. B. (2011) Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, Brazil: Crystal chemistry and Rietveld refinement. American Mineralogist, 96 (10) 1455-1460 doi:10.2138/am.2011.3594 | Journal (article/letter/editorial) | | 1455–1460, 2011 Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, Brazil: Crystal chemistry...562, 05508-080 São Paulo, SP, Brazil 2 Rua Murici 62, Campinas, SP, Brazil 3 Department of Earth and Ocean...Ceará, Caixa Postal 6030, 60455-900 Fortaleza, CE, Brazil 5 Departamento de Física e Informática, Instituto...Carlos, SP, Brazil 1 aBStRact A new occurrence of rankamaite is here described at the Urubu pegmatite...pegmatite, Itinga municipality, Minas Gerais, Brazil. The mineral forms cream-white botryoidal aggregates of acicular |  | | Journal (article/letter/editorial) | | composition (Na, Cs)2 (Pb, Sb3+ )3 Ta8 O24 , rankamaite, fersmite, and pyrochlore-group minerals occur...secondary minerals from the Manono, Maniema, Lutsiro, Urubu and Ungursai granitic pegmatites, the most significant...rare-element granitic pegmatites (Manono, Maniema, Urubu, Ungursai) or alluvial clastic sediments (Lutsiro)...(Thoreau et al., 1950). The Urubu granitic pegmatite (Minas Gerais, Brazil) is a lenticular body in micaschist...Frd/S-2r Frd/S-3 Thr/S-4 Locality Manono Maniema Urubu Ungursai Lutsiro Lutsiro Lutsiro Lutsiro Lutsiro |  | Melcher, Frank, Graupner, Torsten, Gäbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, Oberthür, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | 1998; rare-element pegmatites of the Serido Belt, Brazil, Baumgartner et al., 2006), little is known about...Uher et al., 2008), simpsonite (Ercit, 1986), rankamaite, cesplumtantite, fersmite, rynersonite, liandradite... 3. Methods Concentrate samples from different mine sites in many African countries have been investigated...taken place in the north-east of Zimbabwe, at Benson Mine, Sutswe, Rusambo and Shamva. T Archean ages were...93 % concordant; sample 056, Fig. 4a) and Benson mine pegmatites (2587 ± 4 Ma; on average 97 % concordant; |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Ernest H. Nickel, CSIRO, Wembley, WA, Australia, and Monte C. Nichols published by Aleph Enterprises, Box 213...Connecticut. Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical...Potosi SLP Mato Grosso Sul MS Sinaloa SIN Minas Gerais MG ee abasco Tamaulipas Tlaxcala Veracruz...Wokitecas eel TMPS Tia VER YUC ZAC States, Brazil Acre Alagoas Amapa Amazonas Bahia Ceara Para...Spotsylvania Co., and Partridge mine, Orange Co., VA, and at Dahlonega, GA; Homestake mine, Lawrence Co., SD; Silver |  | | Report (issue) | | (1979). Probe analyses (1) from Broken Hill gold mine, Coromandel , New Zealand. ACANTHITE. Nikolaeva...(1979). Probe analyses (4) from Broken Hill gold mine, Coromandel, New Zealand. AGUILARITE. Sugaki et...6528 (1983). Probe analysis, x-ray data from Sanru mine, Hokkaido, Japan. AGUILARITE. Sugaki et al., J....65-77 (1982). Microprobe analyses (5) from Sanru mine, Hokkaido. AGUILARITE. Vassalo Morales and Borodaev...Aufschluss 33, 367-373 (1982). Occurrence at Clara mine Black Forest. X-ray data, a 10.46, c 3.02A. AKERMANITE |
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Urubu mine, Monte Belo, Itinga, Minas Gerais, Brazil