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Ranciéite

Type Locality
Le Rancié Mine, Sem, Vicdessos, Ariège, Midi-Pyrénées, France
Mineral Data
(Ca,Mn)Mn4O9·3H2O
Strunz: 
4.FL.40
Physical Properties
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Synonyms
Synonyms: 
Rancieite