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ATHENA

MINERALOGY

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Mineral:ASTROPHYLLITE
Formula:K2Na(Fe2+,Mn)7Ti2Si8O26(OH)4F
Crystal System:Anorthic (Triclinic)
Strunz Nr:8/G.12-40
Group:Astrophyllite group
References:MM 56 (1992), 17; HB2/1 (1995); CM 41 (2003), 1; L3 (2014), 8
Type Locality:Brevik, Langesundfjord, Norway

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