| 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 Webb Granite Quarry, Fitzwilliam, Cheshire County, New Hampshire, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 757977 |
| Long-form Identifier: | 1:3:757977:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 1.4km (0.9 miles) | ⓘSilver White Granite Quarry, Fitzwilliam, Cheshire County, New Hampshire, USA |
| 1.9km (1.2 miles) | ⓘSnow Flake Granite Quarry, Fitzwilliam, Cheshire County, New Hampshire, USA |
| 7.3km (4.5 miles) | ⓘReynolds Mine (Beryl Hill Mine), Royalston, Worcester County, Massachusetts, USA |
| 12.1km (7.5 miles) | ⓘMonadnock Mountain, Jaffrey, Cheshire County, New Hampshire, USA |
| 13.8km (8.6 miles) | ⓘSouth Royalston beryl locality (Clark locality), Royalston, Worcester County, Massachusetts, USA |
| 19.3km (12.0 miles) | ⓘOrange mica mine, Orange, Franklin County, Massachusetts, USA |
| 24.9km (15.5 miles) | ⓘPiper graphite mine (Piper black-lead mine), Northfield, Franklin County, Massachusetts, USA |
| 26.5km (16.5 miles) | ⓘOsgood Graphite Mine, Nelson, Cheshire County, New Hampshire, USA |
| 32.3km (20.1 miles) | ⓘMcDonald Quarry, Mason, Hillsborough County, New Hampshire, USA |
| 33.7km (20.9 miles) | ⓘBarker Hill Quarry (Rusk Quarry; Townsend Quarry), Townsend, Middlesex County, Massachusetts, USA |
| References |
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