Aegirine-augite from
Menengai Volcano, Nakuru County, Kenya

Photos Maps Search Mineralogy

Standard

Add Photo

Map Pages Nearest Localities

Mineral Search Similar Localities Nearest Localities Search Google

Predictive Mineralogy

Classification
Locality type:	Volcano
Species:	Aegirine-augite
Formula:	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Confirmation
Validity:	Believed Valid
Data
Mineral Data:	Click here to view Aegirine-augite data
Locality Data:	Click here to view Menengai Volcano, Nakuru County, Kenya
Data Identifiers
Mindat Occurrence Record ID:	1427006
Long-form Identifier:	1:3:1427006:8
GUID (UUID V4):	0
Nearest other occurrences of Aegirine-augite

18.8km (11.7 miles)	ⓘ Nakuru Volcanic Area, Nakuru County, Kenya
37.1km (23.0 miles)	ⓘ Londiani Volcano, Baringo County, Kenya
37.9km (23.6 miles)	ⓘ Molo Volcanic Area, Nakuru County, Kenya
53.8km (33.4 miles)	ⓘ Eburru Volcanic Complex, Nakuru County, Kenya
70.7km (43.9 miles)	ⓘ Mau Volcanic Area, Narok County, Kenya
82.6km (51.3 miles)	ⓘ Nyeri and Kijabe Volcanic Areas, Nyeri County, Kenya
83.3km (51.8 miles)	ⓘ Tinderet volcano, Nandi County, Kenya
90.1km (56.0 miles)	ⓘ Longonot Volcano, Nakuru County, Kenya
References
McCall, G. J. H. (1967). Geology of the Nakuru-Thomson's Falls-Lake Hannington area. Rep. Geol. Surv. Kenya, 78, 122. Jennings, D. J. (1971). Geology of the Molo area. Report. Geological Survey of Kenya, 86. Leat, P. T. (1984). Geological evolution of the trachytic caldera volcano Menengai, Kenya Rift Valley. Journal of the Geological Society, 141(6), 1057-1069. doi.org/10.1144/gsjgs.141.6.1057 Leat, P. T., MacDonald, R., & Smith, R. L. (1984). Geochemical evolution of the Menengai caldera volcano, Kenya. Journal of Geophysical Research: Solid Earth, 89(B10), 8571-8592. doi.org/10.1029/JB089iB10p08571 Leat, P. T. (1985). Facies variations in peralkaline ash-flow tuffs from the Kenya Rift Valley. Geological magazine, 122(2), 139-150. doi.org/10.1017/S0016756800031046 Leat, P. T. (1991). Volcanological development of the Nakuru area of the Kenya rift valley. Journal of African Earth Sciences (and the Middle East), 13(3-4), 483-498. doi.org/10.1016/0899-5362(91)90111-B Macdonald, R., Navarro, J. M., Upton, B. G. J., & Davies, G. R. (1994). Strong compositional zonation in peralkaline magma: Menengai, Kenya Rift Valley. Journal of Volcanology and Geothermal Research, 60(3-4), 301-325. doi.org/10.1016/0377-0273(94)90057-4

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 15, 2026 02:15:33

Go to top of page

Aegirine-augite from Menengai Volcano, Nakuru County, Kenya

Aegirine-augite from
Menengai Volcano, Nakuru County, Kenya