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Torregaveta, Bacoli, Phlegrean Fields, Naples Province, Phlegrean Volcanic Complex, Campania, Italy

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Latitude & Longitude (WGS84): 40° 48' 32'' North , 14° 2' 38'' East
Latitude & Longitude (decimal): 40.8088888889, 14.0438888889
Name(s) in local language(s): Torregaveta, Bacoli, Campi Flegrei, Provincia di Napoli, Complesso vulcanico flegreo, Campania, Italia
 
Outcrop of the Breccia Museo, a volcanic breccia of complex origin which contains abundant fragments of juvenile lava, country rock, hydrothermally altered rock, and feldspar-dominated cumulate nodules (syenites).

The syenite nodules are primarily composed of sanidine (up to ca. 80%) with subordinate albite-rich plagioclase, marialite, a S- and Cl-rich member of the cancrinite group (liottite), amphiboles, pyroxenes, biotite, magnetite, titanite, apatite, sodalite group minerals (haüyne and sodalite). Accessory minerals include U- and Zr-bearing phases such as thorianite-uraninite, an U-bearing member of pyrochlore group, U-bearing thorite, U-and REE-bearing phosphate (monazite group), U-bearing zircon, baddeleyite and zirconolite; minor sulfides (pyrite, pyrrhotite, chalcopyrite, galena, etc.), carbonates (calcite and cerussite), scheelite, ferberite, etc. are also present. Halite, sylvite, and anhydrite are rarely found as microscopic inclusions in feldspars (Fedele et al., 2006).


Mineral List



36 entries listed. 30 valid minerals.

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References

- Pichler, H., (1970): Italienische Vulkan-Gebiete II, Phlegräische Felder, Ischia, Ponza-Inseln, Roccamonfina (Sammlung geologischer Führer), Bornträger Berlin Stuttgart.
- Russo M. (1982): Le zeoliti dei prodotti vulcanici della Campania. Notiziario del Gr. Miner. Geol. Napoletano, 7, 13-24.
- Russo M. (1985): Elenco delle specie e varietà mineralogiche dei Campi Flegrei continentali ed insulari. Notiziario del Gr. Miner. Geol. Napoletano, 13/14, 15-23.
- Russo M. (1986): Mineralizzazioni sanidinitiche delle "Brecce Museo" presenti nel settore SW dei Campi Flegrei continentali ed insulari. Notiziario del Gr. Miner. Geol. Napoletano, 16, 5-12.
- Punzo I. (1996): La liottite di Torregaveta. Notizie del Gr. Miner. Geol. Napoletano, 1, 1, 3.
- Stefanelli S. (1996): L’aragonite di Torregaveta. Notizie del Gr. Miner. Geol. Napoletano, 1, 1, 2-3.
- Punzo I., Russo M. (1998): Primo ritrovamento di hauynite ai Campi Flegrei. Notizie del Gr. Miner. Geol. Napoletano, 3, 1, 3; http://www.geocities.com/gmgn/n3_98-2.htm
- Punzo I., Stefanelli S. (1998): Thomsonite e baddeleyite ai Campi Flegrei. Notizie del Gr. Miner. Geol. Napoletano, 3, 1, 3.
- Fedele L., Tarzia M., Belkin H.E., De Vivo B., Lima A., Lowenstern J.B. (2006): Magmatic–hydrothermal fluid interaction and mineralization in alkali-syenite nodules from the Breccia Museo pyroclastic deposit, Naples, Italy. In: De Vivo B. (ed.), Volcanism in the Campania Plain: Vesuvius, Campi Flegrei and Ignimbrites. Developments in Volcanology, vol. 9, Elsevier B.V., Amsterdam, pages 125-161.
- Russo M. (2008): Zeolites from Campi Flegrei. Bollettino AIZ Series/Report, Vol. 31 (2008), 13-23. Publisher: Associazione Italiana Zeoliti onlus

- http://www.geocities.com/gmgn/n1_96-4.htm


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