| Locality type: | Occurrence |
| Classification |
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| Species: | 'Plagioclase' (not an IMA approved species) |
| Formula: | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Plagioclase data |
| Locality Data: | Click here to view Frog Pond West Occurrence (J-M Reef), Sweet Grass County, Montana, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 497930 |
| Long-form Identifier: | 1:3:497930:2 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Plagioclase |
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| 2.0km (1.2 miles) | ⓘBoulder River Ni-Cu East Occurrence, Sweet Grass County, Montana, USA |
| 2.6km (1.6 miles) | ⓘChrome Mountain Ni-Cu Occurrence, Sweet Grass County, Montana, USA |
| 3.9km (2.4 miles) | ⓘStillwater Mine (Johns-Manville Stillwater Platinum; Stillwater PGM Resources; Stillwater Platinum Project; M Prospect), Sweet Grass County, Montana, USA |
| 4.4km (2.7 miles) | ⓘForge Ni-Cu Occurrence (Boulder Forge; Placer Basin), Sweet Grass County, Montana, USA |
| 5.2km (3.2 miles) | ⓘBoulder River Ni-Cu Riverside Occurrence (Riverside Prospect), Sweet Grass County, Montana, USA |
| 6.9km (4.3 miles) | ⓘPicket Pins prospect (Picket Pin occurrence), Sweet Grass County, Montana, USA |
| 7.1km (4.4 miles) | ⓘIron Mountain Ni-Cu Camp Occurrence, Sweet Grass County, Montana, USA |
| 7.2km (4.4 miles) | ⓘEast Boulder Mine, Sweet Grass County, Montana, USA |
| 7.4km (4.6 miles) | ⓘNicon Occurrence, Park County, Montana, USA |
| 8.2km (5.1 miles) | ⓘMonkey East Camp Zone Occurrence (J-M Reef), Sweet Grass County, Montana, USA |
| References |
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