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Astrophyllite

Type Locality
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway
Mineral Data
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Strunz: 
9.DC.05
Physical Properties
Crystal System: 
Triclinic
Streak: 
Golden
Hardness: 
3.0
Tenacity: 
brittle
Synonyms
Synonyms: 
Astrofillite
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