 | | Journal (article/letter/editorial) | | 3190/jgeosci.185 Original paper A phosphate-bearing pegmatite from Lutomia and its relationships to other pegmatites...geochemically primitive, moderately fractionated, LCT pegmatite from Lutomia (Góry Sowie Block, SW Poland) has...primary and secondary phosphate assemblages. The pegmatite crystallized from anatectic granitic magmas mobilized...ite + strunzite–ferrostrunzite + beraunite + dufrénite + jahnsite-(CaMnFe), -(CaMnMn) and -(MnMnMn) +...together, the Lutomia pegmatite has been compared to the phosphate-bearing pegmatite at Michałkowa and the |  | Roda-Robles, E., Galliski, M. A., Roquet, M. B., Hatert, F., de Paeseval, P. (2012) Phosphate nodules containing two distinct assemblages in the Cema granitic pegmatite, San Luis province, Argentina: Paragenesis, composition and significance. The Canadian Mineralogist, 50 (4) 913-931 doi:10.3749/canmin.50.4.913 | Journal (article/letter/editorial) | | TWO DISTINCT ASSEMBLAGES IN THE CEMA GRANITIC PEGMATITE, SAN LUIS PROVINCE, ARGENTINA: PARAGENESIS, COMPOSITION...IRD–GET, 14, avenue Edouard Belin, F–31400 Toulouse, France Abstract Nodules of Fe–Mn phosphates are common...common in the outer core zone of the Cema pegmatite, San Luis Range, Argentina. Two different complex phosphates...enrichment observed in these phosphates, in a pegmatite that is not highly fractionated, could be explained...schorl, in the border and wall zones of this pegmatite. The crystallization of this silicate would have |  | Pieczka, Adam, Hawthorne, Frank C., Ball, Neil, Abdu, Yassir, Gołębiowska, Bożena, Włodek, Adam, Żukrowski, Jan (2018) Graftonite-(Mn), ideally M1MnM2,M3Fe2(PO4)2, and graftonite-(Ca), ideally M1CaM2,M3Fe2(PO4)2, two new minerals of the graftonite group from Poland. Mineralogical Magazine, 82 (6) 1307-1322 doi:10.1180/minmag.2017.081.109 | Journal (article/letter/editorial) | | et al., 2017). Graftonite-(Mn) was found in a pegmatite outcropping in a small abandoned quarry at Lutomia...SE of Świdnica and ~ 60 km SW of Wrocław. The pegmatite forms a relatively large, discordant vertical...2 m across, and a few smaller offshoots. The pegmatite is of the beryl-columbite-phosphate subtype of...whitmoreite, strunzite, ferrostrunzite, beraunite, dufrénite, landesite, jahnsite-(CaMnFe), -(CaMnMn) and -(MnMnMn)...Sowie Block, ~70 km SW of Wrocław, on a small pegmatite dump, a relic of excavation in the 19th century |  | Dyar, M. D., Jawin, E. R., Breves, E., Marchand, G., Nelms, M., Lane, M. D., Mertzman, S. A., Bish, D. L., Bishop, J. L. (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data. American Mineralogist, 99 (5) 914-942 doi:10.2138/am.2014.4701 | Journal (article/letter/editorial) | | expressed in velocity units by convention in this field. Isomer shift is caused by overlap between the nucleus...moment and the gradient of the surrounding electric field, which cause the I = 3/2 level to split into two...and a large contribution to Δ from the electronic field. In high-spin Fe3+, which has electronic 3 2 configuration...electronic field remains spherical. Of course, in both cases, asymmetry in the lattice field causes [6]Fe2+...Bavaria, Germany Tip Top pegmatite, Black Hills, South Dakota Serra Branca pegmatite, 12 km south of Pedra |  | Martins, T., Lima, A., Simmons, W. B., Falster, A. U., Noronha, F. (2011) GEOCHEMICAL FRACTIONATION OF Nb-Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO-ALVAO PEGMATITE FIELD, NORTHERN PORTUGAL. The Canadian Mineralogist, 49 (3) 777-791 doi:10.3749/canmin.49.3.777 | Journal (article/letter/editorial) | | Li-BEARING PEGMATITES FROM THE BARROSO–ALVÃO PEGMATITE FIELD, NORTHERN PORTUGAL Tânia MARTINS§ Geology Centre...Portugal Abstract The Barroso–Alvão granitic pegmatite field, located in northern Portugal, is known for...petalite-bearing bodies. Recent work on this pegmatite field characterized other types of pegmatites, and...fractionation trend starts in the Mn-poor columbite-(Fe) field (spodumene pegmatites) toward Mn- and Ta-enrichment...Keywords: columbite-group minerals, Nb–Ta oxides, pegmatite, fractionation, lithium, Barroso–Alvão, Portugal |  | | Journal (article/letter/editorial) | | graftonite-group mineral from the Yellowknife pegmatite field, Northwest Territories, Canada: Description...and granodiorite in the Archean Yellowknife pegmatite field, located between Upper Ross Lake and Redout...https://doi.org/10.2138/am-2020-NMN105612 raunite, dufrénite, landesite, jahnsite-(CaMnFe), -(CaMnMn), and |  | | Book | | profession he tried to become a leading figure in his field of electronic printing, a frontrunner in his business...and being located near Pleystein our “scientific field camp”. I could not imagine to see him without a...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area...area, however, the Hagendorf-Pleystein Pegmatite Province (HPPP) is not only the largest concentration of...everything has been told about this prominent pegmatite. Professor Strunz was a generous and open-minded |  | | Report (volume) | | wt % H2O-) 25: cesanite from Cesano geothermal field, Latium, Italy (Cavaretta et al. 1981) 26: melanocerite...sodalite foyaite and quartz-bearing peralkaline pegmatite reflect progressively increasing importance of...1991b; Takahashi et al. 1998) and a possible crystal field contribution for Nd. Substitution mechanisms. Fleet...forcing the REEs into a Ca1 equivalent site. Crystal field contribution. Fleet et al. (2000b) noted that progressive...crystal field effect should be stronger for the Ca2 position because of its asymmetrical crystal field, more |
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Pegmatite field, Collioure, Céret, Pyrénées-Orientales, Occitanie, France