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ATHENA

MINERALOGY

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Mineral:CIPRIANIITE
Formula:Ca4[(Th,U,REE)]2Al[]2[Si4B4O22](OH,F)2
Crystal System:Monoclinic
Strunz Nr:8/F.36-40
Group:Hellandite group
References:AM 87 (2002), 739; AM 87 (2002), 745; MR 2 (2004), 176
Type Locality:Tre Croci, Vico volcanic region, Vetralla, Viterbo, Lazio (Latium), Italy
Comments:[] = vacancy

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