 | Eeckhout, Sigrid G., Castañeda, Cristiane, Ferreira, Ana Cláudia M., Sabioni, Antônio C.S., de Grave, Eddy, Vasconcelos, Daniela C.L. (2002) Spectroscopic studies of spessartine from Brazilian pegmatites. American Mineralogist, 87 (10) 1297-1306 doi:10.2138/am-2002-1005 | Journal (article/letter/editorial) | | Federal, Brazil 4 Department of Mining and Geology, Federal University of Paraíba, Paraíba, Brazil 5 Department...Federal University of Ouro Preto, Minas Gerais, Brazil 6 Department of Metallurgical and Materials Engineering...Federal University of Minas Gerais, Minas Gerais, Brazil ABSTRACT Mössbauer spectra (MS) at room temperature...zoned Alto Mirador pegmatite, the simple, zoned Escondido pegmatite, and the simple Poaiá pegmatite. From...is obvious that in the samples from the Alto Mirador pegmatite, ferrous iron is present at the dodecahedral |  | | Journal (article/letter/editorial) | | of Redskin Gulch euclase is associated with bertrandite, fluorite, muscovite, and quartz. Specific occurrences...County, Wisconsin. In Canada, despite its many pegmatite districts, euclase is known from only a few occurrences...René Just Haüy in 1792 using crystals brought from Brazil in 1785. Dana (1892) gives the locality as the...gold”), Figure 2. Euclase, 2.4 cm tall, Ouro Preto, Brazil. Luiz Menezes specimen, Jeff Scovil photo. 544 ...bluish-green, or blue single crystals. Granitic pegmatite localities in Minas Gerais mentioned by Cornejo |  | | Journal (article/letter/editorial) | | aplites of the Pala Chief and Elizabeth R layered pegmatite-aplite dikes, Pala District, California, and the...USA incompatible character of Zn in evolving pegmatite-aplite melts and shows the usefulness of gahnite...measured here may indicate a source of granitic pegmatite-aplite. Keywords Gahnite . Aplite . California...Mg]Al2O4), occurs as an accessory mineral in granitic pegmatite dikes (e.g., Nêmec 1973; Batchelor and Kinnaird...Morris et al. 1997; McClenaghan 2005). In granitic pegmatite dikes gahnite is commonly overlooked due to its |
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