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Can Súria quarry (Guixeres quarry), Maçanet de la Selva, La Selva, Girona (Gerona), Catalonia, Spain
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Nontronite
Can Súria quarry, Maçanet de la Selva, La Selva, Girona, Catalonia, Spain

Photo: fabreminerals.com
 
Name(s) in local language(s): Pedrera Can Súria (Pedrera Guixeres), Maçanet de la Selva, La Selva, Girona (Gerona), Catalunya (Cataluña), España
 
In this quarry basalt flows are exploited. These flows occurred in the Upper Miocene-Pliocene on Paleozoic granites with pegmatites that are also exploited.

This locality is famous for its "ferrosaponite" specimens, as initially identified by XRD and EDS, but recent research (March, 2009) by clay mineral expert Dr. Stephan Kaufhold of Technical Mineralogy, GEOZENTRUM (Hannover, Germany), including more detailed structural analysis, additional IR, and also XRD of ethyleneglycol treated samples, is more consistent with a sodium-free Ca-dominant nontronite (as yet not separately named). Subsequent analysis from Dr. Joan Viñals have confirmed this fact (Thank you to Dr. Joan Viñals for this update.)

Mineral List

Albite ?
Aragonite
Calcite
Ferrosaponite
Hollandite
'Manganese Oxides'
Microcline
Nontronite
Opal
Quartz
var: Amethyst

var: Jasper ?
var: Milky Quartz
Quartz
var: Smoky Quartz



13 entries listed. 7 valid minerals. 1 erroneous literature entry.

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References

- Araña, V.; Aparicio, A.; Martín Escorza C.(et al.),(1983) "El volcanismo neógeno-cuaternario de Cataluña:caracteres estructurales, petrológicos y geodinámicos", Acta Geológica Hispánica, (Universitat de Barcelona; Institut Jaume Almera), vol. 18, núm.1, pàg. 1-17.

- Pallí, Ll.; Roqué, C. (1996b) "Els afloraments volcànics a les comarques gironines". Revista de Girona, Diputació de Girona, vol. 174, pàg. 65-68.

- Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp.

External Links

- http://www.foro-minerales.com/forum/viewtopic.php?p=18721#18721 (incorrect clasification of the Ferrosaponite, in Spanish language)

- http://www.foro-minerales.com/forum/viewtopic.php?p=26370#26370 (description of the locality, in Spanish language)

- http://www.foro-minerales.com/forum/viewtopic.php?p=28483#28483 (amethyst geode in Can Súria, in Spanish language)

- http://www.foro-minerales.com/fotografias-minerales/index2.php?searchterms=can+suria&searchauthor=-&level=search [Link Broken? Apr 2014] (more specimen pictures)

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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.
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