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Hetaerolite

Type Locality
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Mineral Data
ZnMn2O4
Strunz: 
4.BB.10
Physical Properties
Colour: 
Black
Hardness: 
6.0
Tenacity: 
brittle
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