| Locality type: | Mine |
| 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 Black Rapids Mine, Lyndhurst area (Black Rapids area), Lansdowne Township, Leeds and Grenville Counties, Ontario, Canada |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 552487 |
| Long-form Identifier: | 1:3:552487:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 17.5km (10.9 miles) | ⓘTroy Lake occurrence, South Crosby Township, Leeds and Grenville Counties, Ontario, Canada |
| 21.5km (13.3 miles) | ⓘGananoque area, Leeds and Grenville Counties, Ontario, Canada |
| 21.9km (13.6 miles) | ⓘWestport Quadrangle, Leeds and Grenville Counties, Ontario, Canada |
| 24.8km (15.4 miles) | ⓘHighway 15 km 68.9 roadcut, Bastard Township, Leeds and Grenville Counties, Ontario, Canada |
| 42.5km (26.4 miles) | ⓘFournier Mine, South Sherbrooke Township, Lanark County, Ontario, Canada |
| 44.1km (27.4 miles) | ⓘRichardson Feldspar Mine, Bedford Township, Frontenac County, Ontario, Canada |
| 45.5km (28.3 miles) | ⓘDowning farm (Hickory Lake), Macomb, Macomb, St. Lawrence County, New York, USA |
| 51.5km (32.0 miles) | ⓘFoster Quarry, Bathurst Township, Lanark County, Ontario, Canada |
| 52.2km (32.4 miles) | ⓘBathurst Feldspar Mines Ltd, Bathurst Township, Lanark County, Ontario, Canada |
| 52.4km (32.5 miles) | ⓘEagle Lake Mine (Blessington), Hinchinbrooke Township, Frontenac County, Ontario, Canada |
| References |
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