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ATHENA

MINERALOGY

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Mineral: HIORTDAHLITE-II
Formula: (Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Crystal System: Anorthic (Triclinic)
Group: Wöhlerite group
References: CM 12 (1974), 241;TMPM 34 (1985), 297; HB2/1 (1995); CM 50 (2012), 531; MM 86 (2022), 661
Type Locality: Kipawa River, Témiscamingue Co., Québec, Canada
Comments: Name not approved

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