| Locality type: | Intrusion |
| Classification |
|---|
|
| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
|---|
|
| Validity: | Believed Valid |
| Data |
|---|
|
| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Lupongola Intrusion, Cunene Province, Angola |
| Data Identifiers |
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|
| Mindat Occurrence Record ID: | 1421804 |
| Long-form Identifier: | 1:3:1421804:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
|---|
|
|
| 16.8km (10.4 miles) | ⓘKakumangua Intrusion, Epupa, Kunene Region, Namibia |
| 18.2km (11.3 miles) | ⓘZebra Mountains Dikes, Epupa, Kunene Region, Namibia |
| 20.8km (12.9 miles) | ⓘSwartbooisdrif Dikes, Epupa, Kunene Region, Namibia |
| 21.4km (13.3 miles) | ⓘSodalite mine, Orotumba (Oroutumba), Swartbooisdrif Dikes, Epupa, Kunene Region, Namibia |
| 23.0km (14.3 miles) | ⓘCarbonatite outcrops, Swartbooisdrif Dikes, Epupa, Kunene Region, Namibia |
| 24.4km (15.2 miles) | ⓘRuiter's House, Swartbooisdrif Dikes, Epupa, Kunene Region, Namibia |
| 45.3km (28.2 miles) | ⓘNb-Ta-P-(LREE) carbonatite deposit, Epembe Complex, Epupa, Kunene Region, Namibia |
| References |
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|
Issa Filho, A., Dos Santos, A.B.R.M.D., Riffel, B.F., Lapido-Loureiro, F.E.V., McReath, I. (1991) Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40 (1) 205-226 doi:10.1016/0375-6742(91)90039-w Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., Gomes, C.B. (1999) Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29 (4) 735-759 doi:10.1016/s0899-5362(99)00127-x |
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