| Locality type: | Mine |
| Classification |
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| Species: | Phosphoferrite |
| Formula: | (Fe2+,Mn2+)3(PO4)2 · 3H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Ludlamite | 4 |
| Vivianite | 2 |
| Hureaulite | 1 |
| Data |
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| Mineral Data: | Click here to view Phosphoferrite data |
| Locality Data: | Click here to view Big Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 49412 |
| Long-form Identifier: | 1:3:49412:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Phosphoferrite |
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| 5.8km (3.6 miles) | ⓘDan Patch Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA |
| 18.9km (11.7 miles) | ⓘBull Moose Mine, Custer, Custer Mining District, Custer County, South Dakota, USA |
| 28.4km (17.7 miles) | ⓘTip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA |
| References |
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Big Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA