| Locality type: | Village |
| 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 |
| Associated Minerals Based on Photo Data: |
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| Hellandite Group | 2 |
| Vonsenite | 2 |
| Baddeleyite | 2 |
| Tadzhikite-(Ce) | 1 |
| Hornblende Root Name Group | 1 |
| Ciprianiite | 1 |
| Sanidine | 1 |
| Data |
|---|
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Tre Croci, Vetralla, Viterbo Province, Lazio, Italy |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 617708 |
| Long-form Identifier: | 1:3:617708:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 2.2km (1.4 miles) | ⓘLe Carcarelle, Viterbo, Viterbo Province, Lazio, Italy |
| 5.7km (3.6 miles) | ⓘSan Martino al Cimino, Viterbo, Viterbo Province, Lazio, Italy |
| 21.0km (13.0 miles) | ⓘSH2 deep well, Bracciano, Metropolitan City of Rome Capital, Lazio, Italy |
| 23.8km (14.8 miles) | ⓘMonte Rovello, Allumiere, Metropolitan City of Rome Capital, Lazio, Italy |
| 26.9km (16.7 miles) | ⓘSpizzicatore Hill, Allumiere, Metropolitan City of Rome Capital, Lazio, Italy |
| 29.0km (18.1 miles) | ⓘPianciano, Castel Giuliano, Bracciano, Metropolitan City of Rome Capital, Lazio, Italy |
| 31.6km (19.7 miles) | ⓘLa Mola, Anguillara Sabazia, Metropolitan City of Rome Capital, Lazio, Italy |
| 31.9km (19.8 miles) | ⓘTrachyte quarry, Ponzano, Bagnoregio, Viterbo Province, Lazio, Italy |
| 35.1km (21.8 miles) | ⓘMonte Cavalluccio, Campagnano di Roma, Metropolitan City of Rome Capital, Lazio, Italy |
| 35.7km (22.2 miles) | ⓘFosso Attici, Magliano Romano, Metropolitan City of Rome Capital, Lazio, Italy |
| References |
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Tre Croci, Vetralla, Viterbo Province, Lazio, Italy