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ATHENA

MINERALOGY

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Mineral: VICANITE-(Ce)
Formula: (Ca,REE,Th)15Fe3+(SiO4)3(Si3B3O18)(BO3)(As5+O4)(As3+O3)x(NaF3)1-xF7.0,2H2O (x=0.4)
Crystal System: Rhombohedral (Trigonal)
Group: Vicanite group
IMA Number: 1991-050
References: EJM 7 (1995), 439; MR 27 (1996), 394; AM 87 (2002), 1139
Type Locality: Vican volcanic distr., Tre Croci, Vetrella, Lazio (Latium), Italy

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