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Arseniosiderite

Type Locality
Manganese deposit, Romanèche-Thorens, La Chapelle-de-Guinchay, Saône-et-Loire, Burgundy, France
Mineral Data
Ca2Fe3+3(AsO4)3O2·3H2O
Strunz: 
8.DH.30
Physical Properties
Crystal System: 
Monoclinic
Hardness: 
4.5
Tenacity: 
brittle
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