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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Plagioclase from
Boulder River Ni-Cu Riverside Occurrence (Riverside Prospect), Sweet Grass County, Montana, USA


Locality type:Occurrence
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Boulder River Ni-Cu Riverside Occurrence (Riverside Prospect), Sweet Grass County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:496714
Long-form Identifier:1:3:496714:9
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
2.3km (1.4 miles) ⓘNicon Occurrence, Park County, Montana, USA
4.6km (2.8 miles) ⓘBoulder River Ni-Cu East Occurrence, Sweet Grass County, Montana, USA
5.2km (3.2 miles) ⓘFrog Pond West Occurrence (J-M Reef), Sweet Grass County, Montana, USA
7.4km (4.6 miles) ⓘChrome Mountain Ni-Cu Occurrence, Sweet Grass County, Montana, USA
8.8km (5.4 miles) ⓘStillwater Mine (Johns-Manville Stillwater Platinum; Stillwater PGM Resources; Stillwater Platinum Project; M Prospect), Sweet Grass County, Montana, USA
9.2km (5.7 miles) ⓘForge Ni-Cu Occurrence (Boulder Forge; Placer Basin), Sweet Grass County, Montana, USA
9.5km (5.9 miles) ⓘEast Boulder Mine, Sweet Grass County, Montana, USA
11.9km (7.4 miles) ⓘPicket Pins prospect (Picket Pin occurrence), Sweet Grass County, Montana, USA
12.1km (7.5 miles) ⓘIron Mountain Ni-Cu Camp Occurrence, Sweet Grass County, Montana, USA
13.4km (8.3 miles) ⓘMonkey East Camp Zone Occurrence (J-M Reef), Sweet Grass County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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