Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Chalcopyrite from
Picket Pins prospect (Picket Pin occurrence), Sweet Grass County, Montana, USA


Locality type:Prospect
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Picket Pins prospect (Picket Pin occurrence), Sweet Grass County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:500086
Long-form Identifier:1:3:500086:9
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
3.2km (2.0 miles) ⓘStillwater Mine (Johns-Manville Stillwater Platinum; Stillwater PGM Resources; Stillwater Platinum Project; M Prospect), Sweet Grass County, Montana, USA
3.5km (2.2 miles) ⓘMonkey East Camp Zone Occurrence (J-M Reef), Sweet Grass County, Montana, USA
3.6km (2.2 miles) ⓘJanet 50 Occurrence, Sweet Grass County, Montana, USA
4.7km (2.9 miles) ⓘIron Mountain Ni-Cu Iron Creek Occurrence, Sweet Grass County, Montana, USA
5.0km (3.1 miles) ⓘIron Mountain Ni-Cu Camp Occurrence, Sweet Grass County, Montana, USA
5.1km (3.2 miles) ⓘForge Ni-Cu Occurrence (Boulder Forge; Placer Basin), Sweet Grass County, Montana, USA
5.1km (3.2 miles) ⓘIron Mountain, Sweet Grass County, Montana, USA
5.8km (3.6 miles) ⓘChrome Mountain Ni-Cu Occurrence, Sweet Grass County, Montana, USA
6.1km (3.8 miles) ⓘWest Fork West occurrence, Sweet Grass County, Montana, USA
6.4km (4.0 miles) ⓘCrescent Peak Ni-Cu Occurrence, Sweet Grass County, Montana, USA
References
Boudreau, Alan Ernest, McCallum, I. S. (1986) Investigations of the Stillwater Complex; III, The Picket Pin Pt/Pd deposit. Economic Geology, 81 (8) 1953-1975 doi:10.2113/gsecongeo.81.8.1953
Hulbert, L. J., Duke, J. M., Eckstrand, O. R., Lydon, J. W., Scoates, R. F. J., Cabri, L. J., & Irvine, T. N. (1998) Geological Environments of Platinum Group elements. Geological Survey of Canada, Open File 1440. Natural Resources Canada.
Corkery, J. T. (2002). Mineralogy petrography and geochemistry of the Picket Pin PGE deposit Stillwater Complex Montana. Master of Science thesis, University of Montana.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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