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Eosphorite

Type Locality
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
Mineral Data
(Mn2+,Fe2+)Al(PO4)(OH)2·H2O
Strunz: 
8.DD.20
Physical Properties
Crystal System: 
Orthorhombic
Streak: 
White
Hardness: 
5.0
Tenacity: 
brittle