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ATHENA

MINERALOGY

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Mineral: PIERGORITE-(Ce)
Formula: Ca8Ce2(Al0,5Fe3+0,5)(▢,Li,Be)2Si6B8O36(OH,F)2
Crystal System: Monoclinic
Group: Hellandite group related
IMA Number: 2005-008
References: AM 91 (2006), 1170
Type Locality: Tre Croci, Vico volcanic region, Vetralla, Viterbo, Lazio (Latium), Italy
Comments: ▢ = vacancy

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