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Sigloite

Type Locality
Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province (Bustillos Province), Potosí Department, Bolivia
Mineral Data
Fe3+Al2(PO4)2(OH)3·7H2O
Strunz: 
8.DC.30
Physical Properties
Hardness: 
3.0