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Biotite from
Corigliano, Sessa Aurunca, Roccamonfina Volcanic Complex, Caserta, Campania, Italy

Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
References
References:Pezzotta, F., Musacchio, G. (1992): Rinvenimento di cristalli di Augite sul Vulcano di Roccamonfina. Rivista Mineralogica Italiana 01/1992, 19.
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Corigliano, Sessa Aurunca, Roccamonfina Volcanic Complex, Caserta, Campania, Italy
Nearest other occurrences of Biotite
8.0km (5.0 miles) Orchi, Conca della Campania, Roccamonfina Volcanic Complex, Caserta, Campania, Italy
52.4km (32.6 miles) Pianura, Naples, Campania, Italy
52.8km (32.8 miles) Soccavo, Naples, Campania, Italy
53.7km (33.4 miles) Torregaveta, Bacoli, Naples, Campania, Italy
56.2km (34.9 miles) Colle Spinazzeta, Ceccano, Frosinone Province, Lazio, Italy
59.3km (36.9 miles) Caccaviello Quarry, Lacco Ameno, Ischia Island, Naples, Campania, Italy
62.6km (38.9 miles) Pollena quarries, Pollena - Trocchia area, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, Italy
62.6km (38.9 miles) Cupa dell'Olivella, Sant'Anastasia, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, Italy
64.7km (40.2 miles) San Vito quarry, San Vito, Ercolano, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, Italy
66.6km (41.4 miles) Fosso di Monte Acuto, Giuliano di Roma, Frosinone Province, Lazio, Italy
 
Mineral and/or Locality  
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