| 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 Portovelo Mine (Porto Velo Mine), Zaruma Canton, El Oro Province, Ecuador |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1857167 |
| Long-form Identifier: | 1:3:1857167:3 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 28.8km (17.9 miles) | ⓘCangrejos Au-Cu deposit, Azuay Province, Ecuador |
| 62.8km (39.0 miles) | ⓘMina Paraiso, Bella Rica mining district, Camilo Ponce Enríquez Canton, Azuay Province, Ecuador |
| 66.6km (41.4 miles) | ⓘGaby-Papa Grande Cu-Au deposit, Camilo Ponce Enríquez Canton, Azuay Province, Ecuador |
| 81.1km (50.4 miles) | ⓘChaucha Cu-Mo deposit, Cuenca Canton, Azuay Province, Ecuador |
| 86.4km (53.7 miles) | ⓘCerro Colorado-Tumi prospect, Nambija mining district, Zamora Canton, Zamora-Chinchipe Province, Ecuador |
| References |
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Schütte, Philip, Chiaradia, Massimo, Barra, Fernando, Villagómez, Diego, Beate, Bernardo (2012) Metallogenic features of Miocene porphyry Cu and porphyry-related mineral deposits in Ecuador revealed by Re-Os, 40Ar/39Ar, and U-Pb geochronology. Mineralium Deposita, 47 (4) 383-410 doi:10.1007/s00126-011-0378-z |
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