 | | Report (issue) | | 529(3) Z=4 X-ray Powder Pattern: Jaguaraçu pegmatite, Minas Gerais, Brazil. 7.081 (100), 4.201 (90), 8.405...0.89 0.71 [14.99] 97.43 (1) Jaguaraçu pegmatite, Minas Gerais, Brazil; average of 7 electron microprobe...late-stage cavity filling in albite in a complex pegmatite. Association: Albite, muscovite, zircon, kaolinite...columbite-(Fe). Distribution: From the Jaguaraçu pegmatite, Minas Gerais, Brazil. Name: Honors Carlos do Prado...Geociências, Universidade de Saão Paulo, Saão Paulo, Brazil (DR707) and in the Systematic Reference Series |  | 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 |  | Bačík, Peter, Miyawaki, Ritsuro, Atencio, Daniel, Cámara, Fernando, Fridrichová, Jana (2017) Nomenclature of the gadolinite supergroup. European Journal of Mineralogy, 29 (6) 1067-1082 doi:10.1127/ejm/2017/0029-2659 | Journal (article/letter/editorial) | | Paulo, Rua do Lago, 562, 05508-080 São Paulo, SP, Brazil 4 Dipartimento di Scienze della Terra “Ardito Desio”...2010; Bačík et al., 2014), the Jaguaraçu Pegmatite, Minas Gerais, Brazil (Foord et al., 1986), and Skodefjellet...2011). In contrast, bergslagite from Tennvatn pegmatite, Norway, contains 0.226 apfu Si replacing As and...b Proposed Bi-dominant GSG mineral from Minas Gerais, Brazil described by Foord et al. (1986) as Bi-richest...originally described from the Jaguaraçu pegmatite, Minas Gerais, Brazil (Foord et al., 1986), which remains |  | Belakovskiy, D., Welch, M. D., Camara, F., Gatta, G. D., Tait, K. T. (2012) New Mineral Names. American Mineralogist, 97 (8) 1523-1530 doi:10.2138/am.2012.596 | Journal (article/letter/editorial) | | beginning of the 20th century from a granite pegmatite in a small pit near Åskagen quarry, mining village...niobate mineral with tunnels from Jaguaraçu, Minas Gerais, Brazil: description and crystal structure...hydrated uranyl niobate from the Jaguaraçu pegmatite, Minas Gerais, Brazil, where it is a late-stage cavity...high-potassium peralkaline pegmatite about 10 m long and up to 1 m thick. The pegmatite was (currently mined...nepheline-apatite ore. The mineral associations of that pegmatite belong to three main stages. The earlier one produced |  | | Journal (issue) | | 92kg); crystal 18km from Santa Barbara, Minas Gerais, Brazil Natural History Museum London Personal...limestones with graphite, serpentine and sporadic pegmatite complexes of synorogenic metasomatic or post-orogenic...alexandrite, cat's-eye and 102-8 chrysoberyl in Brazil. Journal of Gemmology, 23, 333-54 Epprecht, W....a n d the inferred s u l p h i d e s suggest pegmatite-like crystallization in an incompatible-element-enriched...was 1993 so alexandrite from the Hematita mine, Brazil, the p r o d u c t i o n of the Argyle d i a m |  | | 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’...workings south of the village of Paprok that explore pegmatite zones within the local Triassic slates. Thirty...Interestingly, these matte black rhombs have formed in a pegmatite environment, which is a fairly rare occurrence |  | | 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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