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Olkaria volcano, Hell’s Gate National Park, Nakuru County, Kenyai
Regional Level Types
Olkaria volcanoVolcano
Hell’s Gate National ParkNational Park
Nakuru CountyCounty
KenyaCountry

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Latitude & Longitude (WGS84):
0° 54' 14'' South , 36° 17' 31'' East
Latitude & Longitude (decimal):
-0.90400,36.29200
GeoHash:
G#: kzcfcg7jb
GRN:
S01E26
Type:
Volcano
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Naivasha38,366 (2018)26.3km
Kijabe4,679 (2018)31.3km
Limuru6,317 (2018)45.3km
Narok36,061 (2017)50.7km
Kikuyu3,953 (2018)56.1km
Mindat Locality ID:
71261
Long-form identifier:
mindat:1:2:71261:2
GUID (UUID V4):
0


Geothermal area
Located 85 km NW of Nairobi.
Peralkaline rhyolite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chevkinite-(Ce)
Formula: Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Ferro-richterite
Formula: {Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
ⓘ Fluorite
Formula: CaF2
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ 'Glass'
ⓘ Hedenbergite
Formula: CaFe2+Si2O6
Description: Ferrohedenbergite.
ⓘ 'K Feldspar'
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
ⓘ Montdorite
Formula: (K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ 'Zeolite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘChevkinite-(Ce)9.BE.70Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘHedenbergite9.DA.15CaFe2+Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘFerro-richterite9.DE.20{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘMontdorite9.EC.15(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘ'Zeolite Group'9.G0.
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'K Feldspar'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Glass'-

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Hⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Oⓘ HedenbergiteCaFe2+Si2O6
Oⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
Fⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Naⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ PrehniteCa2Al2Si3O10(OH)2
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Siⓘ HedenbergiteCaFe2+Si2O6
Siⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Siⓘ Garnet GroupX3Z2(SiO4)3
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Caⓘ FluoriteCaF2
Caⓘ HedenbergiteCaFe2+Si2O6
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ TitaniteCaTi(SiO4)O
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
MnManganese
Mnⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ AegirineNaFe3+Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Feⓘ HedenbergiteCaFe2+Si2O6
Feⓘ Montdorite(K,Na)2(Fe2+,Mn2+,Mg)5(Si4O10)2(OH,F)4
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
CeCerium
Ceⓘ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Kenya
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.

References

Mineralogical Magazine, August 1998, V. 62, N° 4, pp. 477-486.
Journal of Petrology, Vol. 42, N° 4, pp. 825-845, 2001.
Mineralogical Magazine, Volume 66, Number 2, 1 April 2002, pp. 287-299(13)
The United Nations University, GEOTHERMAL TRAINING PROGRAMME Reports 2004, Number 1, Orkustofnun, Grensásvegur 9, IS-108 Reykjavík, Iceland.
MIBEI, GEOFFREY KIPTOO (2012) Application of alteration minerals and thermal fluid geochemistry in geothermal conceptual modeling, case study of Olkaria geothermal field in Kenya. MS Thesis University of Nairobi
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