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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Molybdenite from
Isle Royal Mine, Isle Royal Mine group, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA


Locality type:Mine
Classification
Species:Molybdenite
Formula:MoS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Molybdenite data
Locality Data:Click here to view Isle Royal Mine, Isle Royal Mine group, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:536686
Long-form Identifier:1:3:536686:6
GUID (UUID V4):0
Nearest other occurrences of Molybdenite
0.2km (0.1 miles) ⓘLeader Mine, Leader Hill, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.3km (0.2 miles) ⓘCopper World Mine, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
0.6km (0.4 miles) ⓘEclipse Mine group, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
1.0km (0.6 miles) ⓘExile King Mine, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
1.2km (0.7 miles) ⓘBroad Top Mine, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
1.9km (1.2 miles) ⓘHelvetia-Rosemont Mining District, Pima County, Arizona, USA
2.0km (1.2 miles) ⓘElgin Mine, Elgin Mine group, Peach-Elgin copper deposit, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
2.8km (1.8 miles) ⓘPeach Mine, Peach-Elgin copper deposit, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
2.8km (1.8 miles) ⓘEast Helvetia deposit (Helvetia East Mine; Helvetia Mine; Rosemont deposit), Rosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima County, Arizona, USA
2.9km (1.8 miles) ⓘTiptop Mine, Tiptop Mine group (Tiptop Camp prospects/mines), Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA
References
MRDS database Dep. ID file #10039411, MRDS ID #M050044.
 
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