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Beraunite

About
Group Parent: 
Type Locality
Hrbek Mine, Svatá Dobrotivá (St Benigna), Beroun (Beraun), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
Mineral Data
Fe2+Fe3+5(PO4)4(OH)5·6H2O
Strunz: 
8.DC.27
Physical Properties
Crystal System: 
Monoclinic
Hardness: 
3.0 - 4.0
Tenacity: 
brittle