Owl - coll. P.P. 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:Rhomboedral (Trigonal)
Strunz Nr:8/B.33-25
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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