Connecticut · Litchfield County
Past Producer

Grannis Nickel Sulfide Mine

Litchfield County, Connecticut, United States
SulfurIronNickel
⌖ Show on mapUSGS source ↗
Commodities
PrimarySulfur, Iron, Nickel
Commodity typeB
Deposit
Deposit typeMetamorphosed Replacement
Model13: Synorogenic-synvolcanic Ni-Cu
Deposit sizeS
Materials
Ore mineralsMagnetite, Marcasite, Pentlandite, Chalcopyrite, Pyrrhotite, Pyrite, Hematite, Ilmenite
GanguePlagioclase, Hypersthene, Olivine, Garnet, Chlorite, Sericite, Biotite, Hornblende, Zircon, Spinel, Apatite, Quartz
Geology
Host rockGneiss
Associated rockDiorite,Norite
Economic & production
Development statusPast Producer
Production years1835 TO 1837
Identification
Deposit ID10067416
MRDS IDW000163
RegionNA
Data scoreC
Coordinates41.73699, -73.27254
References
SHEPARD, M. D., 1837, "REPORT", CONN. GEOLOGICAL SURVEY, PG 3Shepard, M. D., 1837, "Report", Conn. Geol. Survey, Pg 39Shepard, M. D., 1837, "Report", Conn. Geol. Survey, Pg 39SHEPARD, 1837