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Lincoln Co., Wisconsin, USA

Lincoln County is covered by thick glacial drift, lakes, marshes and forests, thus bedrock exposures are sparse. It is underlain by a complex mix of granitic rocks, meta-volcanic and meta-sedimentary rocks. These were deformed during the Penokean Orogeny, a continent-to-continent collision event occurring about 1.8 billion years old. Caught up in these are several massive sulfide deposits that have been prospected geophysically and by drill coring. A few outcrops of meta-sedimentary rocks yield interesting metamorphic minerals. The glacial drift may yield specimens to the determined collector, including drift copper, "Lake Superior" agates, placer gold and perhaps a drift diamond or two.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Almandine
Anorthite
var: Bytownite

'Biotite'
Chalcocite
Chalcopyrite
Cordierite
Covellite
Galena
Gold
var: Electrum
Magnetite
Muscovite
'Olivine'
'Orthopyroxene Subgroup'
Polybasite
Pyrite
Pyrrhotite
Quartz
'Serpentine Group'
Silver
Sphalerite
Staurolite
Tetrahedrite


23 entries listed. 17 valid minerals.

Localities in this Region

USA
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.
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