| Locality type: | Prospect |
| Classification |
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| Species: | Muscovite |
| Formula: | KAl2(AlSi3O10)(OH)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Muscovite data |
| Locality Data: | Click here to view Ray Prospect (Ray Mica Prospect), Custer Mining District, Custer County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 383231 |
| Long-form Identifier: | 1:3:383231:8 |
| GUID (UUID V4): | e4abb0f3-7118-4015-95db-09e62b9c3282 |
| Nearest other occurrences of Muscovite |
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| 0.5km (0.3 miles) | ⓘRed Bird pegmatite (McLaren Mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 1.7km (1.0 miles) | ⓘMarydale Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 2.1km (1.3 miles) | ⓘChipmunk No. 25 Claim (Dilley's Chipmunk), Custer Mining District, Custer County, South Dakota, USA |
| 2.3km (1.4 miles) | ⓘSanator area, Custer County, South Dakota, USA |
| 2.3km (1.4 miles) | ⓘWonder lode (Duncan's Little Wonder mine), Custer, Custer Mining District, Custer County, South Dakota, USA |
| 3.0km (1.9 miles) | ⓘRocky Ridge Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| 3.0km (1.9 miles) | ⓘSilver Dollar Mine, Custer Mining District, Custer County, South Dakota, USA |
| 3.3km (2.1 miles) | ⓘOld Missouri Prospect, Custer Mining District, Custer County, South Dakota, USA |
| 3.5km (2.2 miles) | ⓘTip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| 3.5km (2.2 miles) | ⓘPine Top Lode, Custer Mining District, Custer County, South Dakota, USA |
| References |
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