Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
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Pyrite from
St. John Group, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, 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 St. John Group, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:705953
Long-form Identifier:1:3:705953:7
GUID (UUID V4):0
Nearest other occurrences of Pyrite
0.3km (0.2 miles) ⓘWinnetka Mine (Winnetaka Mine), Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA
3.6km (2.3 miles) ⓘU. S. Grant Mine, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA
4.4km (2.7 miles) ⓘEaston-Pacific Mine, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA
5.4km (3.4 miles) ⓘProspect Mine, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA
6.6km (4.1 miles) ⓘValley View and Lucky Strike Lode Claims (St. Lawrence and Monte Cristo), Browns Gulch, Madison County, Montana, USA
8.5km (5.3 miles) ⓘGardner Mine, Alder Gulch Mining District (Virginia City Mining District; Fairweather Mining District), Madison County, Montana, USA
14.3km (8.9 miles) ⓘUnnamed Kyanite Deposit (MRDS - 10246044), Cherry Creek Mining District, Madison County, Montana, USA
21.1km (13.1 miles) ⓘCherry Creek Pegmatite Occurrence, Varney Mining District, Madison County, Montana, USA
21.6km (13.4 miles) ⓘCopper Mountain Mine (Ramshorn Mine; Dictator and Belle Union), Sheridan Mining District (Mill Creek Mining District; Wisconsin Mining District), Madison County, Montana, USA
23.8km (14.8 miles) ⓘHigh Bluff, Washington Mining District (Meadow Creek Mining District), Madison County, Montana, USA
References
Winchell, Alexander Newton (1914) Mining districts of the Dillon quadrangle, Montana, and adjacent areas. Bulletin 574. US Geological Survey doi:10.3133/b574
 
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