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Oneida Co., Wisconsin, USA

Oneida County's bedrock is a poorly exposed complex sequence of Proterozoic granites, meta-volcanic and meta-sedimentary rocks deformed during the 1.80 – 1.85 billion year old Penokean Orogeny. The Penokean orogeny was a continent-continent collision, with the rocks seen in the county being ocean crust and island arc materials caught up in the collision. Several massive sulfide deposits, such as the Lynn and Pelican River deposits, are known, have been explored, but not so far (2013) exploited. Thick glacial drift, lakes and forests make outcrops scarce, but these deposits can yield interesting glacial transported rocks and minerals.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Acanthite
Actinolite
Albite
'Albite-Anorthite Series'
Arsenopyrite
'Biotite'
Birnessite
Calcite
Chalcopyrite
'Chert'
'Chlorite Group'
Chloritoid
Cummingtonite
Diopside
Dolomite
Dyscrasite
Epidote
Freibergite
Galena
var: Argentiferous Galena
'Garnet'
Goethite
Gold
var: Electrum
Grossular
Hydromagnesite
Magnetite
Marcasite
Muscovite
Phlogopite
Polybasite
Pyrargyrite
Pyrite
Pyrrhotite
Quartz
'Scapolite'
'Serpentine Group'
Silver
Sphalerite
Stilpnomelane
Talc
Tetrahedrite
'Tourmaline'
Tremolite
Zircon


45 entries listed. 35 valid minerals.

Localities in this Region

USA

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: July 23, 2014 07:31:19 Page generated: December 9, 2013 00:56:50
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