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


Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite 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:536672
Long-form Identifier:1:3:536672:9
GUID (UUID V4):0
Nearest other occurrences of Pyrite
0.4km (0.3 miles) ⓘExile King Mine, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.5km (0.3 miles) ⓘBroad Top Mine, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.6km (0.4 miles) ⓘOmega Extension Mine, Monument Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.6km (0.4 miles) ⓘIsle Royal Mine, Isle Royal Mine group, 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
0.8km (0.5 miles) ⓘSilver Spur Mine, Frijole claim group, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.9km (0.5 miles) ⓘCopper World Mine, 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
0.9km (0.6 miles) ⓘNarragansett Mine (Narragansett claim; Narragansett Bay claim; Olcutt claim), Daylight-Narragansett Mines (Narragansett-Daylight Mines), Rosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima County, Arizona, USA
1.2km (0.8 miles) ⓘDaylight Mine (York Mine), Daylight-Narragansett Mines (Narragansett-Daylight Mines), Rosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima County, Arizona, USA
References
MRDS database Dep. ID file #10039407, MRDS ID #M050040.
 
and/or  
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