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Chalcosiderite

Type Locality
Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall, England, UK
Mineral Data
Cu(Fe3+,Al)6(PO4)4(OH)8·4H2O
Strunz: 
8.DD.15
Physical Properties
Crystal System: 
Triclinic
Hardness: 
4.5
Tenacity: 
brittle
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