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:
Kenya

Oldest recorded age at locality: 618
Youngest recorded age at locality: 1.3

mindat Locality ID: 2232
mindat URL: http://www.mindat.org/loc-2232.html

Tectonic Settings:

Total number of sublocalities beneath "Kenya": 146
Total number of bottom-level sublocalities: 106

Number of Child Localities: 55
Child Localities:
Baringo County
Bomet County
Bungoma County
Busia County
Central Province
Coast Province
Eastern Province
Elgeyo-Marakwet County
Embu County
Garissa County
Homa Bay County
Isiolo County
Kajiado County
Kakamega County
Kericho County
Kiambu County
Kilifi County
Kirinyaga County
Kisii County
Kisumu County
Kitui County
Kwale County
Laikipia County
Lake Victoria
Lamu County
Machakos County
Makueni County
Mandera County
Marasabit County
Meru County
Migori County
Mombasa County
Murang'a County
Nairobi County
Nakuru County
Nandi County
Narok County
North Eastern Province
Nyamira County
Nyandarua County
Nyanza Province
Nyeri County
Rift Valley Province
Samburu County
Siaya County
Taita-Taveta County
Tana River County
Tharaka-Nithi County
Trans-Nzoia County
Turkana County
Uasin Gishu County
Vihiga County
Wajir County
West Pokot County
Western Province

Latitude: 0°-29'-36"N
Longitude: 36°35'40"E
Decimal Degree (lat, lon): -0.49333333333333,36.594444444444

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.

Alunite	Amorphous	Amphibole	Analcime	Apatite	Aphthitalite	Apophyllite	Aragonite	Auricupride	Baryte
Berdesinskiite	Beryl	Blödite	Brookite	Calcite	Cancrinite	Cancrinite-sodalite	Cerite	Chalcopyrite	Chevkinite
Clay	Clinozoisite	Columbite	Copper	Corundum	Diamond	Diaspore	Epidote	Epsomite	Eudialyte
Fairchildite	Feldspar	Fluorite	Garnet	Gypsum	Halotrichite	Harmotome	Hexahydrite	Iron	Kaolinite
Kornerupine	Magnetoplumbite	Malachite	Marcasite	Mica	Natrolite	Nickeline	None	Not in a structural group	Olivine
Pectolite	Pentlandite	Perovskite	Phosphosiderite	Picromerite	Prehnite	Pyrite	Pyroxene	Quartz	Rocksalt
Rutile	Sapphirine	Schreyerite	Sepiolite	Sodalite	Sphalerite	Spinel	Syngenite	Taranakite	Thomsonite
Titanite	Topaz	Tourmaline	Tridymite	Turquoise	Vivianite	Wollastonite	Zircon

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 As Au B Ba Be C Ca Ce Cl Cr Cu F Fe H Ir K Mg Mn N Na Nb Ni O P Pb Pt S Sc Si Sn Sr Ta Th Ti U V Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amorphous Amphibole Analcime Apatite Aphthitalite Apophyllite Aragonite Auricupride Baryte
Berdesinskiite Beryl Blödite Brookite Calcite Cancrinite Cancrinite-sodalite Cerite Chalcopyrite Chevkinite
Clay Clinozoisite Columbite Copper Corundum Diamond Diaspore Epidote Epsomite Eudialyte
Fairchildite Feldspar Fluorite Garnet Gypsum Halotrichite Harmotome Hexahydrite Iron Kaolinite
Kornerupine Magnetoplumbite Malachite Marcasite Mica Natrolite Nickeline None Not in a structural group Olivine
Pectolite Pentlandite Perovskite Phosphosiderite Picromerite Prehnite Pyrite Pyroxene Quartz Rocksalt
Rutile Sapphirine Schreyerite Sepiolite Sodalite Sphalerite Spinel Syngenite Taranakite Thomsonite
Titanite Topaz Tourmaline Tridymite Turquoise Vivianite Wollastonite Zircon

150 IMA Minerals at location:

Actinolite ()*	Aegirine ()*	Aegirine-augite ()*	Aenigmatite ()*	Albite ()*
Analcime ()*	Anatase ()*	Andradite ()*	Anhydrite ()*	Anorthite ()*
Aphthitalite ()*	Aragonite ()*	Arfvedsonite ()*	Augite ()*	Baryte ()*
Berdesinskiite ()*	Beryl ()*	Blödite ()*	Bobierrite ()*	Brookite ()*
Brushite ()*	Burkeite ()*	Calcite ()*	Cancrinite ()*	Chalcopyrite ()*
Chevkinite-(Ce) ()*	Chlorapatite ()*	Chromite ()*	Chrysoberyl ()*	Clinoferrosilite ()*
Corundum ()*	Diamond ()*	Diopside ()*	Dolomite ()*	Dravite ()*
Epidote ()*	Epsomite ()*	Eudialyte ()*	Eugsterite ()*	Euxenite-(Y) ()*
Fayalite ()*	Ferro-richterite ()*	Ferrosilite ()*	Florencite-(Ce) ()*	Fluorapatite ()*
Fluorite ()*	Forsterite ()*	Galena ()*	Gaylussite ()*	Goethite ()*
Gold ()*	Gonnardite ()*	Gorceixite ()*	Götzenite ()*	Goyazite ()*
Graphite ()*	Grossular ()*	Gypsum ()*	Halite ()*	Halotrichite ()*
Hannayite ()*	Harmotome ()*	Hedenbergite ()*	Hematite ()*	Hexahydrite ()*
Hibonite ()*	Hydroxyapophyllite-(K) ()*	Hydroxylapatite ()*	Ilmenite ()*	Irarsite ()*
Iron ()*	Jacobsite ()*	Kanemite ()*	Kaolinite ()*	Kenyaite ()*
Kogarkoite ()*	Kolbeckite ()*	Kornerupine ()*	Kyanite ()*	Laumontite ()*
Magadiite ()*	Magnesio-arfvedsonite ()*	Magnesioferrite ()*	Magnesite ()*	Magnetite ()*
Makatite ()*	Malachite ()*	Marcasite ()*	Microcline ()*	Mirabilite ()*
Mohrite ()*	Montdorite ()*	Mullite ()*	Muscovite ()*	Nahcolite ()*
Natrolite ()*	Natron ()*	Nepheline ()*	Newberyite ()*	Niggliite ()*
Nitromagnesite ()*	Nyerereite ()*	Opal ()*	Orthoclase ()*	Oxy-dravite ()*
Pectolite ()*	Pentlandite ()*	Perovskite ()*	Phlogopite ()*	Pigeonite ()*
Polyhalite ()*	Prehnite ()*	Pyrite ()*	Pyrolusite ()*	Pyrope ()*
Pyrrhotite ()*	Quartz ()*	Richterite ()*	Riebeckite ()*	Rustenburgite ()*
Rutile ()*	Salammoniac ()*	Sanidine ()*	Sapphirine ()*	Schreyerite ()*
Scolecite ()*	Sepiolite ()*	Siderite ()*	Sillimanite ()*	Sodalite ()*
Sperrylite ()*	Sphalerite ()*	Spinel ()*	Stercorite ()*	Sylvite ()*
Syngenite ()*	Taranakite ()*	Thénardite ()*	Thermonatrite ()*	Thomsonite-Ca ()*
Titanite ()*	Topaz ()*	Tremolite ()*	Tridymite ()*	Trona ()*
Turquoise ()*	Villiaumite ()*	Whitlockite ()*	Wollastonite ()*	Zircon ()*

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
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	77728	3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	38	1.3	9	77648,77649,77652,77655,77656,77657,77658,77719,77728	1022
Aegirine-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆	11	4.1	4	77657,77692,77698,77719	286
Aenigmatite ()*	Sapphirine	Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]			2	77665,77719	133
Albite ()*	Feldspar	Na(AlSi₃O₈)	12	1.3	5	77649,77692,77700,77719,77728	8803
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	38	17.5	5	77637,77652,77692,77719,77766	1627
Anatase ()*	Not in a structural group	TiO₂			1	77698	2162
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	12	1.3	3	77649,77668,77692	1534
Anhydrite ()*	Not in a structural group	Ca(SO₄)			1	77766	1588
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)			1	77700	1036
Aphthitalite ()*	Aphthitalite	K₃Na(SO₄)₂			1	77766	77
Aragonite ()*	Aragonite	Ca(CO₃)			1	77698	3250
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	11	4.1	1	77657	295
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆			4	77665,77698,77700,77719	2060
Baryte ()*	Baryte	Ba(SO₄)	19.9	1.3	9	77648,77649,77656,77680,77682,77683,77685,77696,77698	11547
Berdesinskiite ()*	Berdesinskiite	V³⁺₂TiO₅			1	77695	7
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			3	77645,77718,77741	4286
Blödite ()*	Blödite	Na₂Mg(SO₄)₂·4H₂O			1	77766	130
Bobierrite ()*	Vivianite	Mg₃(PO₄)₂·8H₂O			1	77707	17
Brookite ()*	Brookite	TiO₂			1	77698	700
Brushite ()*	Gypsum	Ca(PO₃OH)·2H₂O			1	77667	104
Burkeite ()*	None	Na₄(SO₄)(CO₃)			1	77717	47
Calcite ()*	Calcite	Ca(CO₃)	38	1.3	14	77637,77648,77649,77650,77652,77656,77657,77661,77662,77698,77719,77728,77730,77766	27770
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	11	4.1	1	77656	232
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			3	77693,77695,77700	27198
Chevkinite-(Ce) ()*	Chevkinite	Ce₄(Ti,Fe²⁺,Fe³⁺)₅O₈(Si₂O₇)₂			1	77728	89
Chlorapatite ()*	Apatite	Ca₅(PO₄)₃Cl			1	77700	203
Chromite ()*	Spinel	Fe²⁺Cr₂O₄			1	77700	3902
Chrysoberyl ()*	Olivine	BeAl₂O₄			1	77677	321
Clinoferrosilite ()*	Pyroxene	Fe²⁺₂Si₂O₆			1	77665	18
Corundum ()*	Corundum	Al₂O₃	618	606	10	77677,77689,77710,77745,77746,77749,77757,77758,77759,77762	1797
Diamond ()*	Diamond	C			1	77677	697
Diopside ()*	Pyroxene	CaMgSi₂O₆	38	17.5	6	77652,77655,77692,77695,77698,77700	4135
Dolomite ()*	None	CaMg(CO₃)₂			2	77662,77698	9895
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			3	77733,77752,77760	648
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			4	77695,77698,77711,77728	8173
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O			1	77766	484
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	11	1.89	2	77656,77668	182
Eugsterite ()*	None	Na₄Ca(SO₄)₃·2H₂O			3	77659,77770,77778	32
Euxenite-(Y) ()*	Columbite	Y(NbTi)O₆			1	77701	414
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)			1	77719	371
Ferro-richterite ()*	Amphibole	Na(NaCa)Fe²⁺₅Si₈O₂₂(OH)₂			1	77728	30
Ferrosilite ()*	Pyroxene	Fe²⁺₂Si₂O₆			1	77665	84
Florencite-(Ce) ()*	Alunite	CeAl₃(PO₄)₂(OH)₆			1	77698	73
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	38	17.5	3	77637,77652,77654	2740
Fluorite ()*	Fluorite	CaF₂	19.9	4.1	9	77637,77648,77656,77698,77728,77730,77741,77766,77772	9617
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	77655	1188
Galena ()*	Rocksalt	PbS			6	77680,77682,77683,77693,77696,77698	24243
Gaylussite ()*	None	Na₂Ca(CO₃)₂·5H₂O			1	77662	57
Goethite ()*	Diaspore	FeO(OH)	19.9	5.5	3	77648,77698,77713	7437
Gold ()*	Copper	Au			5	77673,77674,77693,77700,77732	30554
Gonnardite ()*	Natrolite	(Na,Ca)₂(Si,Al)₅O₁₀·3H₂O			1	77766	167
Gorceixite ()*	Alunite	BaAl₃(PO₄)(PO₃OH)(OH)₆			1	77698	121
Götzenite ()*	None	Ca₄NaCa₂Ti(Si₂O₇)₂(OF)F₂	11	4.1	1	77656	27
Goyazite ()*	Alunite	SrAl₃(PO₄)(PO₃OH)(OH)₆			1	77698	173
Graphite ()*	None	C			6	77695,77744,77746,77750,77758,77772	2812
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	2.05	1.89	6	77661,77711,77749,77750,77754,77775	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			4	77667,77684,77709,77766	6890
Halite ()*	Rocksalt	NaCl			5	77663,77717,77766,77770,77778	1398
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O			1	77766	409
Hannayite ()*	None	(NH₄)₂Mg₃(PO₃OH)₄·8H₂O			1	77667	7
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O			1	77766	290
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆			1	77728	741
Hematite ()*	Corundum	Fe₂O₃	19.9	5.5	3	77648,77698,77746	14640
Hexahydrite ()*	Hexahydrite	Mg(SO₄)·6H₂O			1	77766	251
Hibonite ()*	Magnetoplumbite	CaAl₁₂O₁₉			2	77700,77706	80
Hydroxyapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀(OH,F)·8H₂O			2	77765,77766	85
Hydroxylapatite ()*	Apatite	Ca₅(PO₄)₃OH	12	1.3	1	77649	367
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			4	77698,77700,77713,77766	5433
Irarsite ()*	Pyrite	IrAsS			1	77700	154
Iron ()*	Iron	Fe			1	77700	1089
Jacobsite ()*	Spinel	Mn²⁺Fe³⁺₂O₄	19.9	5.5	1	77730	172
Kanemite ()*	None	NaSi₂O₄(OH)·3H₂O			1	77637	4
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	618	606	3	77698,77743,77766	5591
Kenyaite ()*	None	Na₂Si₂₂O₄₁(OH)₈·6H₂O			1	77663	8
Kogarkoite ()*	None	Na₃(SO₄)F			1	77666	14
Kolbeckite ()*	Phosphosiderite	Sc(PO₄)·2H₂O			1	77698	26
Kornerupine ()*	Kornerupine	(Mg,Fe²⁺,Al, )₁₀(Si,Al,B)₅O₂₁(OH,F)₂			2	77695,77745	68
Kyanite ()*	Not in a structural group	Al₂OSiO₄			3	77711,77712,77745	1507
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			1	77766	1271
Magadiite ()*	None	Na₂Si₁₄O₂₈(OH)₂·8H₂O			2	77637,77663	11
Magnesio-arfvedsonite ()*	Amphibole	NaNa₂(Mg₄Fe³⁺)Si₈O₂₂(OH)₂	12	1.3	2	77649,77657	79
Magnesioferrite ()*	Spinel	MgFe³⁺₂O₄	19.9	5.5	1	77730	98
Magnesite ()*	Calcite	Mg(CO₃)	618	606	2	77743,77766	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	38	1.3	13	77648,77649,77652,77654,77655,77656,77665,77698,77719,77730,77743,77745,77766	14899
Makatite ()*	None	Na₂Si₄O₈(OH)₂·4H₂O			1	77663	8
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	77693	12537
Marcasite ()*	Marcasite	FeS₂			1	77698	5674
Microcline ()*	Feldspar	K(AlSi₃O₈)	12	1.3	3	77649,77698,77713	4924
Mirabilite ()*	None	Na₂(SO₄)·10H₂O			1	77766	223
Mohrite ()*	Picromerite	(NH₄)₂Fe²⁺(SO₄)₂·6H₂O			1	77766	18
Montdorite ()*	Mica	KFe²⁺_1.5Mn²⁺_0.5Mg_0.5Si₄O₁₀(F,OH)₂			1	77728	3
Mullite ()*	None	Al_4+2xSi_2-2xO_10-x (x ≈ 0.4)			1	77706	78
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			4	77655,77662,77733,77746	17380
Nahcolite ()*	None	NaH(CO₃)			3	77637,77663,77664	78
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O			3	77765,77766,77768	1236
Natron ()*	None	Na₂(CO₃)·10H₂O			1	77766	51
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	38	1.3	9	77649,77652,77657,77658,77665,77692,77706,77719,77720	884
Newberyite ()*	None	Mg(PO₃OH)·3H₂O			1	77667	24
Niggliite ()*	Nickeline	PtSn			1	77700	22
Nitromagnesite ()*	None	Mg(NO₃)₂·6H₂O			1	77766	12
Nyerereite ()*	Fairchildite	Na₂Ca(CO₃)₂	19.9	5.5	1	77730	18
Opal ()*	Amorphous	SiO₂·nH₂O			4	77637,77666,77708,77755	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			3	77665,77692,77710	2349
Oxy-dravite ()*	Tourmaline	Na(Al₂Mg)(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃O			2	77691,77733	24
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)			1	77766	363
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈			1	77700	1512
Perovskite ()*	Perovskite	CaTiO₃	19.9	5.5	4	77655,77698,77700,77730	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	38	17.5	4	77652,77655,77698,77746	2273
Pigeonite ()*	Pyroxene	(Mg,Fe,Ca)₂Si₂O₆			1	77698	303
Polyhalite ()*	None	K₂Ca₂Mg(SO₄)₄·2H₂O			1	77766	102
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	77728	1898
Pyrite ()*	Pyrite	FeS₂			2	77693,77698	39462
Pyrolusite ()*	Rutile	MnO₂			1	77698	3106
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃			1	77775	341
Pyrrhotite ()*	Nickeline	Fe₇S₈			3	77695,77698,77700	9056
Quartz ()*	Quartz	SiO₂	2.05	1.89	13	77645,77661,77690,77693,77695,77698,77701,77713,77728,77732,77733,77741,77773	61156
Richterite ()*	Amphibole	Na(NaCa)Mg₅Si₈O₂₂(OH)₂	12	1.3	1	77649	148
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂			2	77713,77728	375
Rustenburgite ()*	Perovskite Auricupride	Pt₃Sn			1	77700	34
Rutile ()*	Rutile	TiO₂			3	77695,77698,77766	5614
Salammoniac ()*	None	(NH₄)Cl			1	77766	105
Sanidine ()*	Feldspar	K(AlSi₃O₈)			2	77667,77719	598
Sapphirine ()*	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]			2	77706,77745	129
Schreyerite ()*	Schreyerite	V³⁺₂Ti⁴⁺₃O₉			1	77695	10
Scolecite ()*	Natrolite	Ca(Si₃Al₂)O₁₀·3H₂O			1	77719	390
Sepiolite ()*	Sepiolite Clay	Mg₄Si₆O₁₅(OH)₂·6H₂O			1	77662	241
Siderite ()*	Calcite	Fe(CO₃)	19.9	5.5	2	77648,77650	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅			3	77706,77746,77758	1516
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl			3	77665,77692,77719	444
Sperrylite ()*	Pyrite	PtAs₂			1	77700	337
Sphalerite ()*	Sphalerite	ZnS			1	77698	21482
Spinel ()*	Spinel	MgAl₂O₄	618	1.89	5	77661,77698,77700,77706,77749	1934
Stercorite ()*	None	(NH₄)Na(PO₃OH)·4H₂O			1	77766	6
Sylvite ()*	Rocksalt	KCl			1	77766	275
Syngenite ()*	Syngenite	K₂Ca(SO₄)₂·H₂O			1	77766	44
Taranakite ()*	Taranakite	K₃Al₅(PO₃OH)₆(PO₄)₂·18H₂O			1	77667	57
Thénardite ()*	None	Na₂(SO₄)			3	77717,77770,77778	299
Thermonatrite ()*	None	Na₂(CO₃)·H₂O			2	77637,77666	64
Thomsonite-Ca ()*	Thomsonite	NaCa₂(Al₅Si₅)O₂₀·6H₂O			2	77719,77766	452
Titanite ()*	Titanite	CaTi(SiO₄)O	38	1.3	5	77649,77652,77692,77728,77745	4899
Topaz ()*	Topaz	Al₂SiO₄F₂			1	77677	1476
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			2	77711,77745	2562
Tridymite ()*	Tridymite	SiO₂			1	77700	458
Trona ()*	None	Na₃(HCO₃)(CO₃)·2H₂O			4	77637,77663,77666,77766	129
Turquoise ()*	Turquoise	CuAl₆(PO₄)₄(OH)₈·4H₂O	618	606	1	77749	484
Villiaumite ()*	Rocksalt	NaF			1	77663	31
Whitlockite ()*	Cerite	Ca₉Mg(PO₃OH)(PO₄)₆			1	77700	104
Wollastonite ()*	Wollastonite	CaSiO₃	12	1.3	2	77649,77656	1247
Zircon ()*	Zircon	Zr(SiO₄)			3	77698,77710,77775	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000407	carbonatite complex
Jen_0000408	carbonatite complex with transitional alkali basalt composition
Jen_0000410	carbonatite complex
Jen_0000413	carbonatite complex
Jen_0000414	carbonatite complex
Jen_0000415	carbonatite complex
Jen_0000592	MAGMATIC STYLE: Cone sheets, dykes, veins and extrusive pyroclastic deposits including bedded tuffs. ASSOCIATED SILICATE ROCKS: Ijolite, phonolite, nephelinite, breccia and fenite.
Jen_0000593	MAGMATIC STYLE: Cone sheets, dykes, veins and extrusive pyroclastic deposits including bedded tuffs. ASSOCIATED SILICATE ROCKS: Ijolite, phonolite, nephelinite, breccia and fenite.
Jen_0000594	MAGMATIC STYLE: Adjacent, deeply eroded volcanic complexes with cone sheets, dykes and many irregular intrusions. Also extrusive and intrusive tuffs and agglomerates. ASSOCIATED SILICATE ROCKS: Nepheline syenite, phonolite and melanephelinite; ijolite blocks in agglomerates; fenite.
Jen_0000595	MAGMATIC STYLE: Adjacent, deeply eroded volcanic complexes with cone sheets, dykes and many irregular intrusions. Also extrusive and intrusive tuffs and agglomerates. ASSOCIATED SILICATE ROCKS: Nepheline syenite, phonolite and melanephelinite; ijolite blocks in agglomerates; fenite.
Jen_0000605	MAGMATIC STYLE: Tuff and agglomerate. ASSOCIATED SILICATE ROCKS: Lavas and tuffs of basanite, tephrite, trachyte, phonolite, nephelinite and melilitite.
Jen_0000606	MAGMATIC STYLE: Tuff and agglomerate. ASSOCIATED SILICATE ROCKS: Lavas and tuffs of basanite, tephrite, trachyte, phonolite, nephelinite and melilitite.
Jen_0000638	MAGMATIC STYLE: Central exposed complex within partially eroded volcano. ASSOCIATED SILICATE ROCKS: Pyroxenite, ijolite, nepheline syenite, phonolite, melilitolite and fenite; nephelinitic and melilitic lavas, tuffs and agglomerates.
Jen_0000639	MAGMATIC STYLE: Central exposed complex within partially eroded volcano. ASSOCIATED SILICATE ROCKS: Pyroxenite, ijolite, nepheline syenite, phonolite, melilitolite and fenite; nephelinitic and melilitic lavas, tuffs and agglomerates.

16 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Jen_0000407	12	1.3	12-1.3	K-Ar				209290	Homa Mountain Complex, Homa Bay County, Kenya	Homa Mountain Complex	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55
Jen_0000592	6.6	6.6	6.6	K-Ar		whole rock, biotite		209290	Homa Mountain Complex, Homa Bay County, Kenya	Homa Mountain	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000593	12	1.3	12-1.3	K-Ar		whole rock, biotite		209290	Homa Mountain Complex, Homa Bay County, Kenya	Homa Mountain	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000408	38	17.5	38-17.5	K-Ar				285421	Rangwa Carbonatite Complex, Homa Bay County, Kenya	Rangwa Complex	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55
Jen_0000638	28	28	28	K-Ar		pyroxene, biotite		285421	Rangwa Carbonatite Complex, Homa Bay County, Kenya	Kisingiri and Rangwa	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000639	38	17.5	38-17.5	K-Ar		pyroxene, biotite		285421	Rangwa Carbonatite Complex, Homa Bay County, Kenya	Kisingiri and Rangwa	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000410	11	4.1	11-4.1	K-Ar				227741	Ruri Complex, Homa Bay County, Kenya	North and South Ruri	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55
Jen_0000594	7.5	7.5	7.5	K-Ar		whole rock		227741	Ruri Complex, Homa Bay County, Kenya	North and South Ruri	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000595	11	4.1	11-4.1	K-Ar		whole rock		227741	Ruri Complex, Homa Bay County, Kenya	North and South Ruri	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
ree-00397	11	4.1	4.1-11 Ma					227741	Ruri Complex, Homa Bay County, Kenya	Ruri Complex	Orris and Grauch (2002)		USGSOFR02_189
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
Jen_0000415	19.9	5.5	19.9-5.5	K-Ar				249667	Tinderet Volcano, Nandi County, Kenya	Tinderet Volcano	Ernst and Bell (2010)	10.1007/s00710-009-0074-1	MP98_55
Jen_0000605	12.6	12.6	12.6	K-Ar		whole rock, biotite		249667	Tinderet Volcano, Nandi County, Kenya	Tinderet and Londiani	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000606	19.9	5.5	19.9-5.5	K-Ar		whole rock, biotite		249667	Tinderet Volcano, Nandi County, Kenya	Tinderet and Londiani	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0001537	618	606	612 ± 6	U-Pb	age of formation of protolith ruby	zircon	Zircon	26484	John Saul Mine (Rockland Mine), Tsavo West, Voi, Taita-Taveta County, Kenya	John Saul Mine	Giuliani et al. (2007)		GOGD37_23

Sample	Source Locality	Reference URL
R100161	Kenya	https://rruff.info/R100161
X050122	Kenya	https://rruff.info/X050122

All locality data graciously provided by mindat.org

All age data...