 | | Journal (article/letter/editorial) | | of the granitic pegmatites of the Fregeneda area (Salamanca, Spain) E. RODA Dept. de Mineralogfa y Petrologfa...Univ. del Pals Vasco/EHU, Apdo. 644, 48080 Bilbao, Spain F. FONTAN Univ. Paul Sabatier, URA 067, Toulouse...Vasco/EHU, Apdo. 644, 48080 Bilbao, Spain Abstract In the Fregeneda area different pegmatitic types can...the basis of their mineralogy, internal structure and field relationships. The most common type corresponds...pegmatites with a homogeneous internal structure, but Li and Sn-bearing pegmatites are also relatively widespread |  | | Journal (article/letter/editorial) | | PAPER Chemical variations and significance of phosphates from the Fregeneda-Almendra pegmatite field,... Central Iberian Zone (Spain and Portugal) Encarnación Roda-Robles & Romeu Vieira & Alfonso Pesquera...widespread within a schistmetagreywacke complex in the Fregeneda-Almendra area (Central Iberian Zone). They intrude...intrude pre-Ordovician metasedimentary rocks and show a zonal distribution relative to the Meda-Penedono-Lumbrales...bodies to those enriched in Li, F, Sn, Nb>Ta, P and Be. Based on mineralogical criteria, these pegmatites |  | | Journal (article/letter/editorial) | | symmetry (generally C2/c or P21/n space-group types), and by unit-cell parameters generally around a ~ 12,...alluaudite-type minerals is A(2)’A(1)M(1)M(2)2(TO4)3, and the new nomenclature scheme proposed herein is mainly...mainly based on the contents of the M(1) and M(2) octahedral sites. For phosphates, the root name is defined...alluaudites s.l., M2(Fe2+Fe3+) = hagendorfites s.l., and M2(Mn2+Fe3+) = varulites s.l. The root-name is used...For arsenates, the nomenclature is more complex, and numerous root-names are already defined in the literature |  | | Journal (article/letter/editorial) | | granitic pegmatites of the Fregeneda area (Salamanca, Spain): characteristics and petrogenesis E. RODAROBLES1...RODAROBLES1, A. PESQUERAPEREZ1, F. VELASCOROLDAN1 AND F. FONTAN2 i Departamento de Mineralogia y Petrologia...Universidad del Pals Vasco 644, E-48080, Bilbao, Spain 2 Laboratoire de Min6ralogie, Universit6 Paul Sabatier...France ABSTRACT Pegmatites of the Fregeneda area, Salamanca, Spain, show a zonal distribution, from barren...barren to enrichment in Li, Sn, Rb, Nb>Ta, B and P. They intrude pre-Ordovician metasediments which were |
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