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Fairfieldite
Type Locality
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
Mineral Data
Ca
2
(Mn
2+
,Fe
2+
)(PO
4
)
2
·2H
2
O
Strunz:
8.CG.05
Physical Properties
Streak:
White
Hardness:
3.5
Tenacity:
brittle
