| 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 PJ Keating Quarry (Lunenburg Quarry), Lunenburg, Worcester County, Massachusetts, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 362576 |
| Long-form Identifier: | 1:3:362576:7 |
| GUID (UUID V4): | c8394d30-9c96-4714-825d-c5c5ffc4ff31 |
| Nearest other occurrences of Biotite |
|---|
|
|
| 7.3km (4.5 miles) | ⓘRoute 13 area, Lunenburg, Worcester County, Massachusetts, USA |
| 10.5km (6.5 miles) | ⓘRollstone Hill Quarries, Fitchburg, Worcester County, Massachusetts, USA |
| 15.0km (9.3 miles) | ⓘPine Hill, Bolton, Worcester County, Massachusetts, USA |
| 15.1km (9.4 miles) | ⓘBolton Lime Quarries (Bolton Quarry; Whitcomb Quarry; Hildreth Quarry), Bolton, Worcester County, Massachusetts, USA |
| 17.6km (11.0 miles) | ⓘRoute 62 locality (Potash Hill), Hudson, Middlesex County, Massachusetts, USA |
| 18.7km (11.6 miles) | ⓘBarker Hill Quarry (Rusk Quarry; Townsend Quarry), Townsend, Middlesex County, Massachusetts, USA |
| 20.6km (12.8 miles) | ⓘQuabbin Aqueduct Shaft #2 locality, Holden, Worcester County, Massachusetts, USA |
| 23.0km (14.3 miles) | ⓘHarris Quarry, Acton, Middlesex County, Massachusetts, USA |
| 23.4km (14.6 miles) | ⓘMcCarthy Quarry, Acton, Middlesex County, Massachusetts, USA |
| 24.1km (14.9 miles) | ⓘMason, Hillsborough County, New Hampshire, USA |
| References |
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|
|
PJ Keating Quarry, Lunenburg, Worcester County, Massachusetts, USA