Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

Köppen climate type:

Aw : Tropical savanna, wet

Mindat Locality ID:

406837

Long-form identifier:

mindat:1:2:406837:5

GUID (UUID V4):

The volcano covers about 350 km² but the eastern parts are concealed under younger volcanic rocks. Some 95% of the volcano comprises trachytic rocks including lavas with individual flows up to 80 m thick, pumice, pumice lapilli, crystal and welded tuffs and agglomerates.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

9 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine

Formula: NaFe³⁺Si₂O₆

References:

Weaver, S. D., Sceal, J. S. C., & Gibson, I. L. (1972). Trace-element data relevant to the origin of trachytic and pantelleritic lavas in the East African rift system. Contributions to Mineralogy and Petrology, 36(3), 181-194. doi.org/10.1007/BF00371430

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Aegirine-augite

Formula: (Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Aenigmatite

Formula: Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Albite var. Anorthoclase

Formula: (Na,K)AlSi₃O₈

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ 'Alkali Feldspar'

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Arfvedsonite

Formula: [Na][Na₂][Fe²⁺₄Fe³⁺]Si₈O₂₂(OH)₂

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Fayalite

Formula: Fe²⁺₂SiO₄

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Hedenbergite

Formula: CaFe²⁺Si₂O₆

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ Quartz

Formula: SiO₂

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

ⓘ 'Sodic amphibole'

References:

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
Group 9 - Silicates
ⓘ	Fayalite	9.AC.05	Fe²⁺₂SiO₄
ⓘ	Hedenbergite	9.DA.15	CaFe²⁺Si₂O₆
ⓘ	Aegirine-augite	9.DA.20	(Na_aCa_bFe²⁺_cMg_d)(Fe³⁺_eAl_fFe²⁺_gMg_h)Si₂O₆
ⓘ	Aegirine	9.DA.25	NaFe³⁺Si₂O₆
ⓘ	Arfvedsonite	9.DE.25	[Na][Na₂][Fe²⁺₄Fe³⁺]Si₈O₂₂(OH)₂
ⓘ	Aenigmatite	9.DH.40	Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	var. Anorthoclase	9.FA.35	(Na,K)AlSi₃O₈
Unclassified
ⓘ	'Alkali Feldspar'	-
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Sodic amphibole'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
O	Oxygen
O	ⓘ Aegirine	NaFe³⁺Si₂O₆
O	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
O	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
O	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
O	ⓘ Fayalite	Fe₂²⁺SiO₄
O	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Quartz	SiO₂
O	ⓘ Pyroxene Group	ADSi₂O₆
Na	Sodium
Na	ⓘ Aegirine	NaFe³⁺Si₂O₆
Na	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Na	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Na	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
Mg	Magnesium
Mg	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Al	Aluminium
Al	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Si	Silicon
Si	ⓘ Aegirine	NaFe³⁺Si₂O₆
Si	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Si	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Si	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
Si	ⓘ Fayalite	Fe₂²⁺SiO₄
Si	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Si	ⓘ Quartz	SiO₂
Si	ⓘ Pyroxene Group	ADSi₂O₆
K	Potassium
K	ⓘ Albite var. Anorthoclase	(Na,K)AlSi₃O₈
Ca	Calcium
Ca	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Ca	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Ti	Titanium
Ti	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Fe	Iron
Fe	ⓘ Aegirine	NaFe³⁺Si₂O₆
Fe	ⓘ Aegirine-augite	(Na_aCa_bFe_c²⁺Mg_d)(Fe_e³⁺Al_fFe_g²⁺Mg_h)Si₂O₆
Fe	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Fe	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
Fe	ⓘ Fayalite	Fe₂²⁺SiO₄
Fe	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄

Other Regions, Features and Areas containing this locality

AfricaContinent

East African Rift System (EARS)Zone (Tectonic)

African Plate

East African Rift
- East African Rift-eastNarrow Rift
North-Central Gregory Rift basinBasin

Kenya

Turkana County
- Maralal volcanic areaVolcanic Province

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

Key, R. M. (1987). Geology of the Maralal area. Republic of Kenya Ministry of Environment and Natural Resources, Mines and Geological Department Report, 105.

Woolley, A. R. (2001) Alkaline Rocks and Carbonatites of the World, Part 3: Africa - Alkaline Rocks and Carbonatites of the World. The Geological Society of London.p.109

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Nasaken Volcano, Turkana County, KenyaiRegional Level TypesNasaken VolcanoVolcano Turkana CountyCounty KenyaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

Select Mineral List Type

Mineral List

Rock Types Recorded

Select Rock List Type

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Nasaken Volcano, Turkana County, Kenya i
Regional Level Types
Nasaken Volcano Volcano
Turkana County County
Kenya Country