| Locality type: | Complex |
| 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 |
| Age information |
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| Maximum recorded age: | 665 ± 33 Ma |
| Minimum recorded age: | 555 ± 17 Ma |
| Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
|---|
| 1 | 555 ± 17 Ma | Ediacaran | - | K-Ar |
|---|
| 2 | 665 ± 33 Ma | Cryogenian | - | K-Ar |
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| Sample references: | |
| 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 Kirumba Complex, Bwito, Rutshuru Territory, North Kivu, DR Congo |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1423068 |
| Long-form Identifier: | 1:3:1423068:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 20.5km (12.7 miles) | ⓘLueshe Mine, Bwito, Rutshuru Territory, North Kivu, DR Congo |
| 27.1km (16.8 miles) | ⓘBishusha occurrence, Bwito, Rutshuru Territory, North Kivu, DR Congo |
| 36.8km (22.8 miles) | ⓘNyamuragira volcano, Bahunde, Masisi Territory, North Kivu, DR Congo |
| 44.1km (27.4 miles) | ⓘMount Shaheru, Nyiragongo Volcano, Nyiragongo Territory, North Kivu, DR Congo |
| 55.3km (34.3 miles) | ⓘRusongati occurrence, Bahunde, Masisi Territory, North Kivu, DR Congo |
| 86.8km (54.0 miles) | ⓘNumbi Intrusion, Numbi, Kalehe Territory, South Kivu, DR Congo |
| 99.1km (61.6 miles) | ⓘRusororo pegmatite, Muhororo, Ngororero District, Western Province, Rwanda |
| References |
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