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Woodruffite
Type Locality
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Mineral Data
Zn(Mn
4+
,Mn
3+
)
5
O
10
·3½H
2
O
Strunz:
4.FL.25
Physical Properties
Streak:
Brown
Hardness:
4.5
Tenacity:
brittle
