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Pinilla de Fermoselle, Zamora, Castile and Leon, Spain

A highly fractionated, Li-F-Be-B-P-bearing granite pegmatite in calc-alkaline granite and hornfels.

Appears as a cupola over a PF leucogranite, displaying a non-symmetrical internal zonation with a complete sequence from a barren pegmatitic facies near the granite, to a highly evolved zone in the uppermost part of the body.

Al-rich micas show a continuous evolution from muscovitic to lepidolitic compositions from the leucogranite to the most evolved zone. Fe-rich micas range from Fe-biotite in the leucogranite and in the least evolved pegmatite zones, to an intermediate composition between zinnwaldite and trilithionite in the most evolved pegmatitic facies (Roda-Robles et al., 2006).

Refs.:

- Roda, E. et al. (1998). "The Fe-Mn phosphate associations from the Pinilla de Fermoselle pegmatite, Zamora, Spain: occurence of kryzhanovskite and natrodufrénite." European Journal of Mineralogy, 10(1).


- American Mineralogist (2005): 1887-1899.

- Roda-Robles, E., Pesquera, A., Gil-Crespo, P. P., Torres-Ruiz, J. & De Parseval, P. (2006): Mineralogy and geochemistry of micas from the Pinilla de Fermoselle pegmatite (Zamora, Spain). European Journal of Mineralogy, 18, 369-377.

Mineral List

Albite
'Albite-Anorthite Series'
Alluaudite
Amblygonite
'Apatite'
Barbosalite
Beraunite
Beryl
Biotite
Brazilianite
Cassiterite
Chlorapatite
Cookeite
Elbaite
Eosphorite
Ferrisicklerite
Fluorapatite
Herderite
Heterosite
Hureaulite
'Jahnsite'
'K Feldspar'
Kryzhanovskite
Lepidolite
Leucophosphite
Lipscombite
Microcline
Mitridatite
Montebrasite
Muscovite
var: Sericite
Natrodufrénite
Phosphosiderite
Quartz
Robertsite
Rockbridgeite
Schorl
Tavorite
Triphylite
Wardite
Xanthoxenite
Zinnwaldite
Zircon


43 entries listed. 36 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 22nd Jun 2011 17:20:56
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