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

Central Province, Kenyai
Regional Level Types
Central ProvinceCounty
KenyaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosSearch
08881120017339895533901.jpg
beginning ascent of Mount Kenya

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
05097670017339895549824.jpg
Dawn from Point Lenana

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
09047290017340407885724.jpg
descending from Point Lenana

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
08881120017339895533901.jpg
beginning ascent of Mount Kenya

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
05097670017339895549824.jpg
Dawn from Point Lenana

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
09047290017340407885724.jpg
descending from Point Lenana

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
08881120017339895533901.jpg
beginning ascent of Mount Kenya

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
05097670017339895549824.jpg
Dawn from Point Lenana

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
Type:
County
Largest Settlements:
PlacePopulation
Thika200,000 (2013)
Nyeri51,084 (2013)
Ol Kalou47,795 (2013)
Nyahururu31,978 (2018)
Karuri21,476 (2013)
Kiambu21,234 (2017)
Mindat Locality ID:
122390
Long-form identifier:
mindat:1:2:122390:6
GUID (UUID V4):
0


One of the former provinces of Kenya replaced by the following counties in 2013: Nyandarua; Nyeri; Kirinyaga; Murang'a; and Kiambu.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

22 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
ⓘ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
Dawson, J.B., Hinton, R.W., and Steele, I.M. (2008) The composition of anorthoclase and nepheline in Mount Kenya phonolite and Kilimanjaro trachyte, and crystal-glass partitioning of elements. Canadian Mineralogist, 46, 6, 1455-1464.
ⓘ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Alkali Feldspar'
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Barkevikite'
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chrysoberyl
Formula: BeAl2O4
ⓘ 'Clinopyroxene Subgroup'
ⓘ Corundum
Formula: Al2O3
ⓘ Corundum var. Ruby
Formula: Al2O3
ⓘ Diamond
Formula: C
ⓘ Fayalite
Formula: Fe2+2SiO4
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Fayalite-Forsterite Series'
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Feldspar Group'
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Feldspar Group var. Perthite'
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Glass'
ⓘ 'Iddingsite'
ⓘ Katophorite
Formula: {Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ Quartz
Formula: SiO2
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Sanidine
Formula: K(AlSi3O8)
ⓘ Scolecite
Formula: CaAl2Si3O10 · 3H2O
ⓘ 'Soda'
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ 'Sodic amphibole'
ⓘ 'Sodium Amphibole Subgroup'
Formula: An(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
ⓘ 'Sodium-Calcium Amphibole Subgroup'
Formula: An(NaCa)(Z2+5-mZ3+m)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
ⓘ Spinel
Formula: MgAl2O4
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).
ⓘ Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2
ⓘ 'Zeolite Group'
References:
Gregory, J. W. (1900) Contributions to the Geology of British East Africa.--Part II.The Geology of Mount Kenya. Journal of the Geological Society, 56 (1) 205-222 doi:10.1144/gsl.jgs.1900.056.01-04.12
Baker, B.H. (1967) Geology of the Mount Kenya area. Ministry of Environment and Natural Resources, Mines and Geological Department, Report No. 79, 78 pp.
Baker, B.H., Williams, L.A.J., Miller, J.A., Fitch, F.J. (1971) Sequence and geochronology of the Kenya rift volcanics. Tectonophysics, 11 (3) 191-215 doi:10.1016/0040-1951(71)90030-8
Rock, N. M. S. (1976) The comparative strontium isotopic composition of alkaline rocks: New data from Southern Portugal and East Africa. Contributions to Mineralogy and Petrology, 56 (2) 205-228 doi:10.1007/bf00399605
Price, R. C., Johnson, R. W., Gray, C. M., Frey, F. A. (1985) Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya. Contributions to Mineralogy and Petrology, 89 (4) 394-409 doi:10.1007/bf00381560
Mahaney, W. C. (1989). Glacial advances on Mount kenya in the Middle Holocene: fact or fiction?. In Quaternary and environmental research on East African Mountains (pp. 141-153).

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘDiamond1.CB.10aC
Group 4 - Oxides and Hydroxides
ⓘChrysoberyl4.BA.05BeAl2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘCorundum4.CB.05Al2O3
ⓘvar. Ruby4.CB.05Al2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2SiO4
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘKatophorite9.DE.20{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘAenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘSanidine9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
ⓘvar. Anorthoclase9.FA.35(Na,K)AlSi3O8
ⓘvar. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
ⓘ'Zeolite Group'9.G0.
ⓘScolecite9.GA.05CaAl2Si3O10 · 3H2O
ⓘThomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-
ⓘ'Barkevikite'-
ⓘ'Soda'-
ⓘ'Feldspar Group
var. Perthite'		-
ⓘ'Iddingsite'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Glass'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Sodium Amphibole Subgroup'-An(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
ⓘ'Sodium-Calcium Amphibole Subgroup'-An(NaCa)(Z2+5-mZ3+m)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
ⓘ'Sodic amphibole'-

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ ScoleciteCaAl2Si3O10 · 3H2O
Hⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Hⓘ TopazAl2(SiO4)(F,OH)2
Hⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Hⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Hⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
BeBeryllium
Beⓘ ChrysoberylBeAl2O4
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DiamondC
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ ChrysoberylBeAl2O4
Oⓘ CorundumAl2O3
Oⓘ FayaliteFe22+SiO4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ Corundum var. RubyAl2O3
Oⓘ SanidineK(AlSi3O8)
Oⓘ ScoleciteCaAl2Si3O10 · 3H2O
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ SpinelMgAl2O4
Oⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Oⓘ Fayalite-Forsterite Series
Oⓘ Pyroxene GroupADSi2O6
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Oⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ TopazAl2(SiO4)(F,OH)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Fⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Fⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Naⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ SodaliteNa4(Si3Al3)O12Cl
Naⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Naⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Naⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Naⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
MgMagnesium
Mgⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ SpinelMgAl2O4
Mgⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ ChrysoberylBeAl2O4
Alⓘ CorundumAl2O3
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ Corundum var. RubyAl2O3
Alⓘ SanidineK(AlSi3O8)
Alⓘ ScoleciteCaAl2Si3O10 · 3H2O
Alⓘ SodaliteNa4(Si3Al3)O12Cl
Alⓘ SpinelMgAl2O4
Alⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Alⓘ TopazAl2(SiO4)(F,OH)2
Alⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Alⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Alⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ FayaliteFe22+SiO4
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ SanidineK(AlSi3O8)
Siⓘ ScoleciteCaAl2Si3O10 · 3H2O
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Siⓘ TopazAl2(SiO4)(F,OH)2
Siⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Siⓘ Fayalite-Forsterite Series
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Siⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ SodaliteNa4(Si3Al3)O12Cl
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Clⓘ Sodium Amphibole SubgroupAn(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2
Clⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
KPotassium
Kⓘ Albite var. Anorthoclase(Na,K)AlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ SanidineK(AlSi3O8)
CaCalcium
Caⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caⓘ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
Caⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ ScoleciteCaAl2Si3O10 · 3H2O
Caⓘ Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Caⓘ Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Caⓘ Sodium-Calcium Amphibole SubgroupAn(NaCa)(Z2+5-mZm3+)(Si8-(n+m+1)Al(n+m-1)O22)(OH,F,Cl)2
TiTitanium
Tiⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ FayaliteFe22+SiO4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ Fayalite-Forsterite Series

Geochronology

Mineralization age: Pliocene : 3.1 Ma to 2.64 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Neogene
   Pliocene
ⓘ Nepheline-syenite2.64 MaMount Kenya, Mount Kenya National Park, Meru County, Kenya
ⓘ Phonolite3.1 MaMount Kenya, Mount Kenya National Park, Meru County, Kenya

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Localities in this Region

Kenya

Other Regions, Features and Areas that Intersect

AfricaContinent
African Plate
Somali PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Quick NavTopMineral ListRock TypesGeochronologyFossilsLocalities in RegionOther Regions
 
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 22:19:51 Page updated: August 8, 2025 19:54:45
Go to top of page