Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Biotite from
Kisingiri Volcano, Homa Bay County, Kenya


Locality type:Volcano
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 Kisingiri Volcano, Homa Bay County, Kenya
Data Identifiers
Mindat Occurrence Record ID:1426554
Long-form Identifier:1:3:1426554:3
GUID (UUID V4):0
Localities for Biotite in this Region
Rangwa carbonatite complex, Kisingiri Volcano, Homa Bay County, Kenya
Kinyamungu, Rangwa carbonatite complex, Kisingiri Volcano, Homa Bay County, Kenya
Nearest other occurrences of Biotite
0.0km (0.0 miles) ⓘRangwa carbonatite complex, Kisingiri Volcano, Homa Bay County, Kenya
20.9km (13.0 miles) ⓘRuri complex, Homa Bay County, Kenya
23.7km (14.7 miles) ⓘSouth Ruri, Ruri complex, Homa Bay County, Kenya
24.7km (15.3 miles) ⓘNorth Ruri, Ruri complex, Homa Bay County, Kenya
27.5km (17.1 miles) ⓘWasaki Peninsula Carbonatites, Homa Bay County, Kenya
28.3km (17.6 miles) ⓘUsaki Ijolite Complex, Homa Bay County, Kenya
30.7km (19.1 miles) ⓘSokolo Point Carbonatite, Wasaki Peninsula Carbonatites, Homa Bay County, Kenya
43.9km (27.3 miles) ⓘHoma Mountain complex, Homa Bay County, Kenya
58.2km (36.1 miles) ⓘLake Simbi Crater, Homa Bay County, Kenya
69.0km (42.9 miles) ⓘMasumbi Au-Cu Prospect, Siaya County, Kenya
References
Deines, P, Gold, D.P (1973) The isotopic composition of carbonatite and kimberlite carbonates and their bearing on the isotopic composition of deep-seated carbon. Geochimica et Cosmochimica Acta, 37 (7) 1709-1733 doi:10.1016/0016-7037(73)90158-0
Le Bas, M. J. (1977). Carbonatite-nephelinite volcanism: an African case history. London: Wiley.
Norry, M. J., Truckle, P. H., Lippard, S. J., Hawkesworth, C. J., Weaver, S. D., & Marriner, G. F. (1980). Isotopic and trace element evidence from lavas, bearing on mantle heterogeneity beneath Kenya. Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 297(1431), 259-271. doi.org/10.1098/rsta.1980.0214
Rubie, David C. (1982) Mass transfer and volume change during alkali metasomatism at Kisingiri, Western Kenya. Lithos, 15 (2) 99-109 doi:10.1016/0024-4937(82)90003-2
Rubie, D. C., Gunter, W. D. (1983) The role of speciation in alkaline igneous fluids during fenite metasomatism. Contributions to Mineralogy and Petrology, 82 (2) 165-175 doi:10.1007/bf01166611
DRAKE, R. E., VAN COUVERING, J. A., PICKFORD, M. H., CURTIS, G. H., & HARRIS, J. A. (1988). New chronology for the Early Miocene mammalian faunas of Kisingiri, Western Kenya. Journal of the Geological Society, 145(3), 479-491. doi.org/10.1144/gsjgs.145.3.0479
Bestland, Erick A., Thackray, Glenn D., Retallack, Gregory J. (1995) Cycles of Doming and Eruption of the Miocene Kisingiri Volcano, Southwest Kenya. The Journal of Geology, 103 (5) 598-607 doi:10.1086/629779
BESTLAND, ERICK A., KRULL, EVELYN S. (1999) Palaeoenvironments of Early Miocene Kisingiri volcano Proconsul sites: evidence from carbon isotopes, palaeosols and hydromagmatic deposits. Journal of the Geological Society, 156 (5) 965-976 doi:10.1144/gsjgs.156.5.0965
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 18, 2026 23:25:34
Go to top of page