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:
Makueni County, Kenya

mindat Locality ID: 285169
mindat URL: http://www.mindat.org/loc-285169.html

Tectonic Settings:

Total number of sublocalities beneath "Makueni County, Kenya": 8
Total number of bottom-level sublocalities: 5

Number of Child Localities: 3
Child Localities:
Chyulu Hills
Dusi (Garba Tula)
Umba Valley Region

Latitude: 0°45'0"N
Longitude: 38°15'0"E
Decimal Degree (lat, lon): 0.75,38.25

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	Amphibole	Clinozoisite	Corundum	Diaspore	Epidote	Feldspar	Garnet	Gypsum	Magnetoplumbite
None	Not in a structural group	Quartz	Sapphirine	Spinel	Tridymite	Vivianite	Zircon

Bobierrite ()*	Corundum ()*	Epidote ()*	Goethite ()*	Grossular ()*
Gypsum ()*	Hibonite ()*	Ilmenite ()*	Kyanite ()*	Microcline ()*
Mullite ()*	Nepheline ()*	Opal ()*	Orthoclase ()*	Quartz ()*
Riebeckite ()*	Sapphirine ()*	Sillimanite ()*	Spinel ()*	Tremolite ()*
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 Ca Ce Fe H K Mg Na O P S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Amphibole Clinozoisite Corundum Diaspore Epidote Feldspar Garnet Gypsum Magnetoplumbite
None Not in a structural group Quartz Sapphirine Spinel Tridymite Vivianite Zircon

21 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Bobierrite ()*	Vivianite	Mg₃(PO₄)₂·8H₂O	1	77707	17
Corundum ()*	Corundum	Al₂O₃	1	77710	1797
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	77711	8173
Goethite ()*	Diaspore	FeO(OH)	1	77713	7437
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	1	77711	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	77709	6890
Hibonite ()*	Magnetoplumbite	CaAl₁₂O₁₉	1	77706	80
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	77713	5433
Kyanite ()*	Not in a structural group	Al₂OSiO₄	2	77711,77712	1507
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	77713	4924
Mullite ()*	None	Al_4+2xSi_2-2xO_10-x (x ≈ 0.4)	1	77706	78
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	1	77706	884
Opal ()*	Amorphous	SiO₂·nH₂O	1	77708	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	1	77710	2349
Quartz ()*	Quartz	SiO₂	1	77713	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	1	77713	375
Sapphirine ()*	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]	1	77706	129
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	77706	1516
Spinel ()*	Spinel	MgAl₂O₄	1	77706	1934
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	77711	2562
Zircon ()*	Zircon	Zr(SiO₄)	1	77710	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...