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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Pyrite from
Kilbourne Mine (Karrick and Jones Mine), Dubuque, Dubuque County, Iowa, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Kilbourne Mine (Karrick and Jones Mine), Dubuque, Dubuque County, Iowa, USA
Data Identifiers
Mindat Occurrence Record ID:1016352
Long-form Identifier:1:3:1016352:0
GUID (UUID V4):0
Nearest other occurrences of Pyrite
0.9km (0.6 miles) ⓘLevel Mine, Dubuque, Dubuque County, Iowa, USA
1.6km (1.0 miles) ⓘFourteeth Street Mine, Julian Avenue Crevices, Dubuque, Dubuque County, Iowa, USA
1.7km (1.1 miles) ⓘLevens Mine (North Langworthy Mine), Dubuque, Dubuque County, Iowa, USA
2.1km (1.3 miles) ⓘStewarts Cave Mine, Dubuque, Dubuque County, Iowa, USA
2.2km (1.4 miles) ⓘStewart and Barlett Mine, Dubuque, Dubuque County, Iowa, USA
4.3km (2.7 miles) ⓘBrugh Mine (Amsden Mine), Dubuque, Dubuque County, Iowa, USA
4.5km (2.8 miles) ⓘPike's Peak, Dubuque County, Iowa, USA
5.0km (3.1 miles) ⓘBeadle Mine (Dubuque and Lake Superior Mine), Key West, Table Mound Township, Dubuque County, Iowa, USA
6.5km (4.0 miles) ⓘDubuque County Fairgrounds, Dubuque County, Iowa, USA
6.5km (4.1 miles) ⓘCreek Bank, Dubuque County, Iowa, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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