| Locality type: | Occurrence |
| 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 Archertown Brook Occurrences, Orford, Grafton County, New Hampshire, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 853169 |
| Long-form Identifier: | 1:3:853169:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 2.8km (1.7 miles) | ⓘNorthey Hill Line Occurrences, Orford, Grafton County, New Hampshire, USA |
| 3.2km (2.0 miles) | ⓘCottonstone Mountain, Orford, Grafton County, New Hampshire, USA |
| 7.3km (4.5 miles) | ⓘEastman Ledges, Orford, Grafton County, New Hampshire, USA |
| 12.2km (7.6 miles) | ⓘLower Baker Pond Brook Occurrences, Wentworth, Grafton County, New Hampshire, USA |
| 14.5km (9.0 miles) | ⓘEly Mine, South Vershire, Vershire, Orange County, Vermont, USA |
| 15.7km (9.8 miles) | ⓘFellows Mine, Wentworth, Grafton County, New Hampshire, USA |
| 17.4km (10.8 miles) | ⓘClement Mine, Warren, Grafton County, New Hampshire, USA |
| 19.9km (12.4 miles) | ⓘLeggett mica prospect, Rumney, Grafton County, New Hampshire, USA |
| 20.0km (12.4 miles) | ⓘElizabeth Mine, South Strafford, Strafford, Orange County, Vermont, USA |
| 21.7km (13.5 miles) | ⓘWheat Mine, Rumney, Grafton County, New Hampshire, USA |
| References |
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