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Rockbridgeite

Type Locality
Midvale Mine, South Mountain, Midvale, Rockbridge Co., Virginia, USA
Mineral Data
Fe2+Fe3+4(PO4)3(OH)5
Strunz: 
8.BC.10
Physical Properties
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Tenacity: 
brittle
Synonyms
Synonyms: 
Manganrockbridgeite