Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Native Copper from
North Wisconsin prospect, Douglas County, Wisconsin, USA


Locality type:Pit
Classification
Species:Native Copper
Formula:Cu
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Native Copper data
Locality Data:Click here to view North Wisconsin prospect, Douglas County, Wisconsin, USA
Data Identifiers
Mindat Occurrence Record ID:506347
Long-form Identifier:1:3:506347:5
GUID (UUID V4):0
Nearest other occurrences of Native Copper
2.9km (1.8 miles) ⓘChippewa Mine, Douglas County, Wisconsin, USA
7.7km (4.8 miles) ⓘStarkweather copper prospects (Edwards Mine; Wisconsin Mine), Douglas County, Wisconsin, USA
8.5km (5.3 miles) ⓘAmicon copper prospect, Douglas County, Wisconsin, USA
11.4km (7.1 miles) ⓘCatlin test pits, Douglas County, Wisconsin, USA
12.6km (7.9 miles) ⓘFond du Lac copper prospect, Douglas County, Wisconsin, USA
17.1km (10.6 miles) ⓘAstor prospect, Douglas County, Wisconsin, USA
18.0km (11.2 miles) ⓘCopper Creek prospects, Douglas County, Wisconsin, USA
20.4km (12.7 miles) ⓘPercival copper prospects, Douglas County, Wisconsin, USA
21.7km (13.5 miles) ⓘSolon Springs Quarry, Douglas County, Wisconsin, USA
23.2km (14.4 miles) ⓘCulligan, Douglas County, Wisconsin, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
and/or  
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