| Locality type: | Quarry |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Margerum Brothers Quarry, West Windsor Township, Mercer County, New Jersey, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 80098 |
| Long-form Identifier: | 1:3:80098:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 27.2km (16.9 miles) | ⓘBrookville syenite deposit, Brookville, Delaware Township, Hunterdon County, New Jersey, USA |
| 44.5km (27.7 miles) | ⓘHolmesburg Granite Company Quarry, Holmesburg, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 46.4km (28.8 miles) | ⓘHacklebarney Mine, Hacklebarney, Chester Township, Morris County, New Jersey, USA |
| 49.3km (30.6 miles) | ⓘGulick Farm Mines, Chester Township, Morris County, New Jersey, USA |
| 50.1km (31.1 miles) | ⓘCromwell Mine (Chester Highland Mine), Chester Township, Morris County, New Jersey, USA |
| 51.8km (32.2 miles) | ⓘBarber's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 51.8km (32.2 miles) | ⓘJerry O'Neill's Quarry, Tacony Creek Valley, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 51.8km (32.2 miles) | ⓘClark's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 51.8km (32.2 miles) | ⓘHoffman's Quarry (Hoffmans Quarry), Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 54.3km (33.8 miles) | ⓘFowler's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA |
| References |
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