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
East Boulder Mine, Sweet Grass County, Montana, USA


Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view East Boulder Mine, Sweet Grass County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:567679
Long-form Identifier:1:3:567679:8
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
5.4km (3.4 miles) ⓘStillwater Mine (Johns-Manville Stillwater Platinum; Stillwater PGM Resources; Stillwater Platinum Project; M Prospect), Sweet Grass County, Montana, USA
7.2km (4.4 miles) ⓘFrog Pond West Occurrence (J-M Reef), Sweet Grass County, Montana, USA
7.2km (4.4 miles) ⓘPicket Pins prospect (Picket Pin occurrence), Sweet Grass County, Montana, USA
8.7km (5.4 miles) ⓘChrome Mountain Ni-Cu Occurrence, Sweet Grass County, Montana, USA
9.0km (5.6 miles) ⓘBoulder River Ni-Cu East Occurrence, Sweet Grass County, Montana, USA
9.5km (5.9 miles) ⓘBoulder River Ni-Cu Riverside Occurrence (Riverside Prospect), Sweet Grass County, Montana, USA
9.5km (5.9 miles) ⓘForge Ni-Cu Occurrence (Boulder Forge; Placer Basin), Sweet Grass County, Montana, USA
10.5km (6.5 miles) ⓘMonkey East Camp Zone Occurrence (J-M Reef), Sweet Grass County, Montana, USA
10.5km (6.5 miles) ⓘJanet 50 Occurrence, Sweet Grass County, Montana, USA
10.8km (6.7 miles) ⓘNicon Occurrence, Park County, Montana, USA
References
Econ Geol. (1995) 90:255-270
 
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