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Babingtonite

Type Locality
Arendal Iron Mines, Arendal, Aust-Agder, Norway
Mineral Data
Ca2(Fe,Mn)FeSi5O14(OH)
Strunz: 
9.DK.05
Physical Properties
Crystal System: 
Triclinic
Hardness: 
5.5 - 6.0
Tenacity: 
brittle