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


Locality type:Mine
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Kilbourne Mine (Karrick and Jones Mine), Dubuque, Dubuque County, Iowa, USA
Data Identifiers
Mindat Occurrence Record ID:1015633
Long-form Identifier:1:3:1015633:5
GUID (UUID V4):0
Nearest other occurrences of Dolomite
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
2.6km (1.6 miles) ⓘComposite Section, Dubuque, Dubuque County, Iowa, USA
4.3km (2.7 miles) ⓘBrugh Mine (Amsden Mine), Dubuque, 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 (4.1 miles) ⓘCreek Bank, Dubuque County, Iowa, USA
7.9km (4.9 miles) ⓘBronson Mine, Durango, Dubuque County, Iowa, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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