| | Journal (article/letter/editorial) | metaquartzites of the northern Serra do Espinhac o (State of Bahia, Brazil) G. Morteani1 and D. Ackermand2...horizon belongs to the Middle Proterozoic Serra de Vereda member of the S~ao Marcos Formation of the...hills of the Serra de Canas=Cana Brava (Northern Serra do Espinhac o, State of Bahia, NE Brazil) about 10...10 km west of the town of Boquira. Sky blue lazulite and deep blue to lilac dumortierite are enriched...i.e. within the stability field of scorzalite–lazulite and dumortierite. The association of Al-phosphates | | | Journal (article/letter/editorial) | of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized...of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized...quartzites of the Veredas formation (Northern Espinhaço, Brazil): LA-ICP-MS age 3 determinations on relict and...Veredas Formation (Northern 22 Espinhaço fold belt, Brazil) have been dated using laser ablation inductively...Neoproterozoic age of the metamorphosed zircons of the 35 Vereda formation corresponds to the Brasiliano-Panafrican | | Visser, D., Felius, R. O., Moree, M. (1997) Augelite and cerian crandallite in dumortierite quartzites, Vaca Morta quarry, Vereda range, Macaúbas, Bahia, Brazil. Mineralogical Magazine, 61 (407) 607-609 doi:10.1180/minmag.1997.061.407.11 | Journal (article/letter/editorial) | quartzites, Vaca Morta quarry, Vereda range, Macatibas, Bahia, Brazil D. Visser University Museum Utrecht...range, Macatibas, Bahia, Brazil. The Vereda range in the northwest of the state of Bahia is well known for...dumortierite-kyanite-muscovite quartzite, Vaca Morta, Vereda range, Macabas, Bahia SiO2 TiO2 A1203 Fe203 FeO MnO MgO CaO...latediagenetic or metamorphic origin of lazulite in the Serra da Vereda quartzites, by a process of disassociation...rock. Some of the Sr is still incorporated in lazulite (up to 5.30 wt.% SrO; Cassedanne et al., 1989) | | | Journal (article/letter/editorial) | metamorphosed phosphatic sandstone, Espinhaço fold belt (Brazil) Gerhard Franz1 · Giulio Morteani2 · Dieter Rhede3...sandstone from the Mesoproterozoic Espinhaço fold belt, Brazil, in a dissolution–precipitation reaction: zircon1...4.2, 14473 Potsdam, Germany mainly augelite, lazulite, and minerals of the svanbergite– crandallite...the Espinhaço supergroup (São Francisco craton, Brazil; Fig. 1). Backscattered electron images (BSE),...sandstone now characterized by the presence of lazulite, a (Mg, Fe)Al-phosphate, and solid solutions of | | | Journal (article/letter/editorial) | deposition in a shallow continental shelf environment. Lazulite, augelite, trolleite, svanbergite, goyazite, crandallite...stability data for augelite, trolleite, berlinite, lazulite, scorzalite, dumortierite, muscovite, kyanite...Aluminum-Phosphates and -Borosilicates (APB), such as lazulite (Mg, Fe)Al2 (PO4) 2 (OH)2, augelite Al2(PO4)(OH)3...have been described e. g. from the Serra do Espinhaço (Bahia, Brazil, Casse- danne & Franco 1966, Cassedanne...Visser et al. 1997), from Diamantina (Minas Gerais, Brazil, Horn et al. 1996, Morteani & Ackermand 2001), | | | Journal (issue) | Crystal 25x 17x 17mm. J& 60/13411. Agate (onyx) ?Brazil]. 6x 5 CM.N2 636/3292. Hofmann collection. All...Hungary, the Harz, Italy, Tirol, Saxony, Switzerland, Brazil, North America, Sitka Island, and Manila (Philippines)...— transparent xls; ! whiteite; wolfeite; first lazulite specimens were found by geologist Bruce Cameron...baricite; *1976 — gormanite; *1976 — kulanite; !! lazulite — xls up to several cm; * new minerals — 5 species;...specimens. Graves Mountain. Lincoln Co., Georgia: !! lazulite x l s upto 3.5 cm: !! rutile — xis up to 25 cm; | | | Report (volume) | Heteropol vie aral CMISetGr sec ce tiO ere et baaeen serra cre cee Calculated deformation-electron-density...light-element abundances. Nature 373:286 Carvalho da Silva J, Clark JR, Christ CL (1955) Crystal structure...Mineral 32:1-14. See also Jambor JL, Roberts AC, Vanko DA (1994) New Mineral Names. Am Mineral 79:1009-1014...Jambor JL, Mueller W, Shigley JE, Puziewicz J, Vanko DA (1984) New Mineral Names. Am Mineral 69:1193 Anovitz...Francis CA, Langley RH, Kissin SA, Shigley JE, Vanko DA, Zilczer JA (1984) Am Mineral 69:810 Malinko SV, | | | Report (volume) | light-element abundances. Nature 373:286 Carvalho da Silva J, Clark JR, Christ CL (1955) Crystal structure...Mineral 32:1-14. See also Jambor JL, Roberts AC, Vanko DA (1994) New Mineral Names. Am Mineral 79:1009-1014...Francis CA, Langley RH, Kissin SA, Shigley JE, Vanko DA, Zilczer JA (1984) Am Mineral 69:810 Malinko SV,...121(4): 107112. See also Jambor JL, Roberts AC, Vanko DA (1994) New Mineral Names. Am Mineral 79: 1009-1014... See also Jambor JL, Grew ES, Puziewicz J, Vanko DA (1988) New Mineral Names. Am Mineral 73:441 Sokolova |
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