| Atencio, D., Roberts, A. C., Cooper, M. A., Filho, L. A. D. Menezes, Coutinho, J. M. V., Stirling, J. A. R., Venance, K. E., Ball, N. A., Moffatt, E., Chaves, M. L. S. C., Brandão, P. R. G., Romano, A. W. (2012) Carlosbarbosaite, ideally (UO2)2Nb2O6(OH)2·2H2O, a new hydrated uranyl niobate mineral with tunnels from Jaguaraçu, Minas Gerais, Brazil: description and crystal structure. Mineralogical Magazine, 76 (1) 75-90 doi:10.1180/minmag.2012.076.1.75 | Journal (article/letter/editorial) | niobate mineral with tunnels from Jaguaraçu, Minas Gerais, Brazil: description and crystal structure D. ATENCIO1...Paulo, Rua do Lago, 562, 05508-080 São Paulo, SP, Brazil Geological Survey of Canada, 601 Booth Street,...Federal de Minas Gerais, Avenida Antônio Carlos, 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil Canadian...de Engenharia de Minas, Escola de Engenharia da Universidade Federal de Minas Gerais, Avenida Antônio...Carlos, 6627, 31270-901 Belo Horizonte, Minas Gerais, Brazil [Received 31 December 2010; Accepted 1 December | | | Catalog/List | IMPERIAL TOPAZ Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil Only one area on the planet produces Imperial...commercial quantities: the Ouro Preto district in Brazil. Colors of the material produced range from pale... 53043 AQUAMARINE Guaratinga (Jaquetô), Bahia, Brazil Large and stout enough to qualify as a ‘blunt instrument’...[Hoppel # D0036] Estimate: $12,000-$14,000 53070 ANATASE Mt. Matskorhae, Odda, Hardangervidda, Hordaland...several oxide minerals, of which Anatase is but one. All of the better Anatase come from Norway. Several places | | | Book | 42(H2O)0.18[Al2(Be2.35Li0.65)Si6O18] from Mokrusha pegmatite, Murzinka, Middle Urals (Yakubovich et al. 2009;...Mg-poor schorl from the Limoeiro mine, Murta, Minas Gerais, Brazil, the band of OH groups in the W site coordinated...phosphates: nahpoite Na2(HPO4) from peralkaline pegmatite of the Lovozero massif (a), newberyite Mg(HPO4)·3H2O...[nominally, Fe2+Mn2+2(PO4)2·3H2O] from Cigana mine, Brazil (a), landesite [nominally, Fe3+Mn2+2 (PO4)2(OH)·]...Al)4(B,Be)12O28 (Fig. 2.5) Locality: Sahutany pegmatite field, Madagascar. Description: Yellowish semitransparent |
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