| Locality type: | Hamlet |
| 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 Quadrada (incl. Quadradin), Selva, Poschiavo, Bernina Region, Grisons, Switzerland |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 821471 |
| Long-form Identifier: | 1:3:821471:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 12.0km (7.5 miles) | ⓘMürasciola, Camp Valley, Poschiavo, Bernina Region, Grisons, Switzerland |
| 13.7km (8.5 miles) | ⓘBottigiana, Ponte in Valtellina, Sondrio Province, Lombardy, Italy |
| 13.9km (8.6 miles) | ⓘLower Scerscen Glacier, Scerscen Valley, Lanzada, Sondrio Province, Lombardy, Italy |
| 22.7km (14.1 miles) | ⓘSissone Valley, Chiesa in Valmalenco, Sondrio Province, Lombardy, Italy |
| 27.0km (16.8 miles) | ⓘVal Vedello uranium deposit, Piateda, Sondrio Province, Lombardy, Italy |
| 30.4km (18.9 miles) | ⓘAlbigna glacier, Albigna Valley, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland |
| 34.7km (21.6 miles) | ⓘPunta Trubinasca, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 35.4km (22.0 miles) | ⓘGavia Pass, Gavia Valley, Valfurva, Sondrio Province, Lombardy, Italy |
| 36.6km (22.7 miles) | ⓘAverta Valley (Northern Glacial Cirque), Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| 37.9km (23.5 miles) | ⓘCanina Valley, Codera Valley, Novate Mezzola, Sondrio Province, Lombardy, Italy |
| References |
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