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Triploidite
Type Locality
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
Mineral Data
(Mn
2+
,Fe
2+
)
2
(PO
4
)(OH)
Strunz:
8.BB.15
Physical Properties
Hardness:
4.5 - 5.0
Tenacity:
brittle
