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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Sphalerite from
Eclipse Mine group, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA


Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Eclipse Mine group, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:536673
Long-form Identifier:1:3:536673:6
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
0.4km (0.3 miles) ⓘExile King Mine, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.7km (0.5 miles) ⓘOmega Mine, Monument Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.9km (0.5 miles) ⓘLeader Mine, Leader Hill, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
2.0km (1.2 miles) ⓘMohawk Mine, Helvetia Wash, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
4.5km (2.8 miles) ⓘRidley Mine, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
9.3km (5.7 miles) ⓘEnzenberg Mine (Mountain King Mine; Silver Butte Mine [?]), Castle Dome, Enzenberg Canyon, Greaterville Mining District, Pima County, Arizona, USA
9.5km (5.9 miles) ⓘNew York Mine, Beuhman Hill, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
9.6km (5.9 miles) ⓘCuprite Mine, Cuprite Mine group, Beuhman Hill, Mount Fagan, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
9.6km (5.9 miles) ⓘCuprite Mine group, Beuhman Hill, Mount Fagan, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
9.6km (6.0 miles) ⓘDimple Mine group, Mount Fagan, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
References
MRDS database Dep. ID file #10039407, MRDS ID #M050040.
 
and/or  
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