| Locality type: | Mine |
| Classification |
|---|
|
| 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 Charles Davis Mine, Groton, Grafton County, New Hampshire, USA |
| Data Identifiers |
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|
| Mindat Occurrence Record ID: | 50375 |
| Long-form Identifier: | 1:3:50375:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
|---|
|
|
| 1.4km (0.9 miles) | ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA |
| 1.4km (0.9 miles) | ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA |
| 2.2km (1.4 miles) | ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA |
| 4.5km (2.8 miles) | ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA |
| 5.5km (3.4 miles) | ⓘKeniston mica prospect, Rumney, Grafton County, New Hampshire, USA |
| 6.6km (4.1 miles) | ⓘLeggett mica prospect, Rumney, Grafton County, New Hampshire, USA |
| 7.3km (4.5 miles) | ⓘWheat Mine, Rumney, Grafton County, New Hampshire, USA |
| 9.1km (5.7 miles) | ⓘNo. 1 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA |
| 9.1km (5.7 miles) | ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA |
| 9.3km (5.8 miles) | ⓘEight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA |
| References |
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|
Cameron, Eugene N., Larrabee, David M., McNair, Andrew H., Page, James J., Stewart, Glen W., Shainin, Vincent E. (1954) Pegmatite Investigations, 1942-45, in New England. Geological Survey Professional Paper 255. US Geological Survey doi:10.3133/pp255 |
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