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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Magnetite from
Helena-Frisco Mine, Lelande Mining District, Shoshone County, Idaho, USA


Locality type:Mine
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Helena-Frisco Mine, Lelande Mining District, Shoshone County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:216792
Long-form Identifier:1:3:216792:3
GUID (UUID V4):0
Nearest other occurrences of Magnetite
0.3km (0.2 miles) ⓘFrisco Mine, Lelande Mining District, Shoshone County, Idaho, USA
0.8km (0.5 miles) ⓘBlack Bear Fraction Mine, Lelande Mining District, Shoshone County, Idaho, USA
2.1km (1.3 miles) ⓘSuccess Mine, Placer Center Mining District, Shoshone County, Idaho, USA
2.5km (1.5 miles) ⓘStandard-Mammoth Mine, Lelande Mining District, Shoshone County, Idaho, USA
3.0km (1.9 miles) ⓘRex Mine, Placer Center Mining District, Shoshone County, Idaho, USA
3.1km (1.9 miles) ⓘTamarack and Custer Mine, Placer Center Mining District, Shoshone County, Idaho, USA
3.5km (2.2 miles) ⓘSherman Mine, Lelande Mining District, Shoshone County, Idaho, USA
3.7km (2.3 miles) ⓘUnion Mine, Lelande Mining District, Shoshone County, Idaho, USA
3.9km (2.4 miles) ⓘCallahan, Placer Center Mining District, Shoshone County, Idaho, USA
4.0km (2.5 miles) ⓘTiger-Poorman Mine, Lelande Mining District, Shoshone County, Idaho, USA
References
Umpleby, Joseph B.; Jones, E. L. Jr. (1923) Geology and ore deposits of Shoshone County, Idaho. Bulletin 732. US Geological Survey doi:10.3133/b732
 
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