| 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 |
| Comments: | Occurs in a granitic pegmatite of the Wissahickon Formation. |
| 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 Deshong's Quarry, Leiperville, Ridley Township, Delaware County, Pennsylvania, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 61167 |
| Long-form Identifier: | 1:3:61167:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 16.7km (10.4 miles) | ⓘRidge Avenue and School Lane Quarries, East Falls, Fairmount Park, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 17.1km (10.6 miles) | ⓘMiquon (Miquon Station; Lafayette; Lafayette Station), Whitemarsh Township, Montgomery County, Pennsylvania, USA |
| 19.2km (11.9 miles) | ⓘWissahickon Valley, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 20.4km (12.7 miles) | ⓘGermantown, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 21.1km (13.1 miles) | ⓘComley's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 21.5km (13.4 miles) | ⓘFowler's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 24.3km (15.1 miles) | ⓘBrandywine Quarry (Hubbard Quarry), Wilmington, New Castle County, Delaware, USA |
| 24.8km (15.4 miles) | ⓘJerry O'Neill's Quarry, Tacony Creek Valley, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 24.8km (15.4 miles) | ⓘHoffman's Quarry (Hoffmans Quarry), Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA |
| 25.1km (15.6 miles) | ⓘClark's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA |
| References |
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