Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Kajiado County, Kenya

Oldest recorded age at locality: 2.05
Youngest recorded age at locality: 1.89

mindat Locality ID: 156156
mindat URL: http://www.mindat.org/loc-156156.html

Tectonic Settings:

Total number of sublocalities beneath "Kajiado County, Kenya": 8
Total number of bottom-level sublocalities: 7

Number of Child Localities: 6
Child Localities:
Lake Amboseli
Lake Magadi
Little Mogadi Dry Lake (Little Magadi Dry Lake)
Mount Suswa (Suswa Volcano)
Shompole
South Rift Valley

Latitude: 2°'19"S
Longitude: 36°10'42"E
Decimal Degree (lat, lon): -2.0052777777778,36.178333333333

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amorphous	Calcite	Cancrinite-sodalite	Clay	Eudialyte	Feldspar	Garnet	Gypsum	Mica	None
Pyroxene	Quartz	Rocksalt	Sapphirine	Sepiolite	Sodalite	Spinel	Taranakite	Tridymite

Aenigmatite ()*	Andradite ()*	Augite ()*	Brushite ()*	Calcite ()*
Clinoferrosilite ()*	Dolomite ()*	Eudialyte ()*	Ferrosilite ()*	Gaylussite ()*
Grossular ()*	Gypsum ()*	Halite ()*	Hannayite ()*	Kenyaite ()*
Kogarkoite ()*	Magadiite ()*	Magnetite ()*	Makatite ()*	Muscovite ()*
Nahcolite ()*	Nepheline ()*	Newberyite ()*	Opal ()*	Orthoclase ()*
Quartz ()*	Sanidine ()*	Sepiolite ()*	Sodalite ()*	Spinel ()*
Taranakite ()*	Thermonatrite ()*	Trona ()*	Villiaumite ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al C Ca Cl F Fe H K Mg N Na O P S Si Ti Zr

Elements from minerals reported directly at this locality: Al Ca Mg O Si

Structural Groups for minerals in this locality:
Amorphous Calcite Cancrinite-sodalite Clay Eudialyte Feldspar Garnet Gypsum Mica None
Pyroxene Quartz Rocksalt Sapphirine Sepiolite Sodalite Spinel Taranakite Tridymite

34 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aenigmatite ()*	Sapphirine	Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]			1	77665	133
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	2.05	1.89	1	77668	1534
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆			1	77665	2060
Brushite ()*	Gypsum	Ca(PO₃OH)·2H₂O			1	77667	104
Calcite ()*	Calcite	Ca(CO₃)			1	77662	27770
Clinoferrosilite ()*	Pyroxene	Fe²⁺₂Si₂O₆			1	77665	18
Dolomite ()*	None	CaMg(CO₃)₂			1	77662	9895
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	2.05	1.89	1	77668	182
Ferrosilite ()*	Pyroxene	Fe²⁺₂Si₂O₆			1	77665	84
Gaylussite ()*	None	Na₂Ca(CO₃)₂·5H₂O			1	77662	57
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	2.05	1.89	0		1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	77667	6890
Halite ()*	Rocksalt	NaCl			1	77663	1398
Hannayite ()*	None	(NH₄)₂Mg₃(PO₃OH)₄·8H₂O			1	77667	7
Kenyaite ()*	None	Na₂Si₂₂O₄₁(OH)₈·6H₂O			1	77663	8
Kogarkoite ()*	None	Na₃(SO₄)F			1	77666	14
Magadiite ()*	None	Na₂Si₁₄O₂₈(OH)₂·8H₂O			1	77663	11
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	77665	14899
Makatite ()*	None	Na₂Si₄O₈(OH)₂·4H₂O			1	77663	8
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	77662	17380
Nahcolite ()*	None	NaH(CO₃)			2	77663,77664	78
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)			1	77665	884
Newberyite ()*	None	Mg(PO₃OH)·3H₂O			1	77667	24
Opal ()*	Amorphous	SiO₂·nH₂O			1	77666	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	77665	2349
Quartz ()*	Quartz	SiO₂	2.05	1.89	0		61156
Sanidine ()*	Feldspar	K(AlSi₃O₈)			1	77667	598
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O			1	77662	241
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl			1	77665	444
Spinel ()*	Spinel	MgAl₂O₄	2.05	1.89	0		1934
Taranakite ()*	Taranakite	K₃Al₅(PO₃OH)₆(PO₄)₂·18H₂O			1	77667	57
Thermonatrite ()*	None	Na₂(CO₃)·H₂O			1	77666	64
Trona ()*	None	Na₃(HCO₃)(CO₃)·2H₂O			2	77663,77666	129
Villiaumite ()*	Rocksalt	NaF			1	77663	31

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000413	carbonatite complex
Jen_0000414	carbonatite complex

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Jen_0000413	2.03	1.89	1.96±0.07	K-Ar										194513	Shompole, Kajiado County, Kenya	Shombole	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55
	Jen_0000414	2.05	1.95	2±0.05	K-Ar										194513	Shompole, Kajiado County, Kenya	Shombole	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...