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Gersdorffite from
Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA

Locality type:Mine
Classification
Species:Gersdorffite
Formula:NiAsS
Comments:"An analysis by Fairchild, published in 1931, and quoted in the Seventh Edition of “Dana’s System of Mineralogy”, gave: iron 3.9, cobalt 0.7, nickel 31.6, antimony 9.1, arsenic 34.9, sulfur 17.1, and bismuth 0.4%" (Schooner 1958); with the ore minerals at Shepard's Lode (Gray 2005).
Habit:grains
Quality for species:Poor for species, only of interest for locality collectors. (#)
Confirmation
Validity:Believed Valid
References
References:Schooner (1958); Gray (2005)
Data
Mineral Data:Click here to view Gersdorffite data
Locality Data:Click here to view Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
 
Mineral and/or Locality  
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