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Nelenite
Type Locality
Trotter Mine (Lehigh Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Mineral Data
(Mn,Fe)
16
(Si
12
O
30
)(OH)
14
[As
3+
3
O
6
(OH)
3
]
Strunz:
9.EE.15
Physical Properties
Crystal System:
Monoclinic
Hardness:
5.0
