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:
Al Kufrah District, Libya

Oldest recorded age at locality: 66
Youngest recorded age at locality: 2.6

mindat Locality ID: 215639
mindat URL: http://www.mindat.org/loc-215639.html

Tectonic Settings:

Total number of sublocalities beneath "Al Kufrah District, Libya": 5
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Al Khofra (Kufra)
Jebel Arkenu (Jabal Arknū)
Jebel Uweinat (Jabal Al Awaynat)
Tibesti Mts

Latitude: 22°29'53"N
Longitude: 23°49'28"E
Decimal Degree (lat, lon): 22.498055555556,23.824444444444

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	Analcime	Apatite	Cancrinite	Cancrinite-sodalite	Catapleiite	Corundum	Eudialyte	Feldspar
Natrolite	None	Pyroxene	Quartz	Sodalite	Spinel	Titanite	Tridymite	Wöhlerite	Zircon

Aegirine ()*	Analcime ()*	Arfvedsonite ()*	Augite ()*	Cancrinite ()*
Catapleiite ()*	Cummingtonite ()*	Eudialyte ()*	Ferro-katophorite ()*	Fluorapatite ()*
Ilmenite ()*	Keldyshite ()*	Låvenite ()*	Lechatelierite ()*	Lorenzenite ()*
Magnetite ()*	Microcline ()*	Natrolite ()*	Nepheline ()*	Quartz ()*
Sodalite ()*	Titanite ()*	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 C Ca Cl F Fe H K Mg Mn Na Nb O P S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Amphibole Analcime Apatite Cancrinite Cancrinite-sodalite Catapleiite Corundum Eudialyte Feldspar
Natrolite None Pyroxene Quartz Sodalite Spinel Titanite Tridymite Wöhlerite Zircon

23 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
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	66	2.6	2	78155,78156	1022
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	66	2.6	2	78155,78156	1627
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	66	2.6	2	78155,78156	295
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	66	2.6	2	78155,78156	2060
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	66	2.6	2	78155,78156	232
Catapleiite ()*	Catapleiite	Na₂Zr(Si₃O₉)·2H₂O	66	2.6	2	78155,78156	113
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	66	2.6	1	78155	327
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	66	2.6	2	78155,78156	182
Ferro-katophorite ()*	Amphibole	Na(NaCa)(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	66	2.6	2	78155,78156	38
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	66	2.6	2	78155,78156	2740
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	66	2.6	2	78155,78156	5433
Keldyshite ()*	None	Na₂ZrSi₂O₇	66	2.6	2	78155,78156	9
Låvenite ()*	Wöhlerite	(Na,Ca)₄(Mn²⁺,Fe²⁺)₂(Zr,Ti,Nb)₂(Si₂O₇)₂(O,F)₄	66	2.6	2	78155,78156	58
Lechatelierite ()*	Amorphous	SiO₂			1	78154	62
Lorenzenite ()*	None	Na₂Ti₂O₃(Si₂O₆)	66	2.6	2	78155,78156	82
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	66	2.6	2	78155,78156	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	78158	4924
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	66	2.6	2	78155,78156	1236
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	66	2.6	2	78155,78156	884
Quartz ()*	Quartz	SiO₂	66	2.6	2	78155,78156	61156
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	66	2.6	2	78155,78156	444
Titanite ()*	Titanite	CaTi(SiO₄)O	66	2.6	2	78155,78156	4899
Zircon ()*	Zircon	Zr(SiO₄)	66	2.6	2	78155,78156	5251

1 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
	ree-00412	66	2.6	Tertiary											227091	Jebel Arkenu (Jabal Arknū), Al Kufrah District, Libya	Jabal Archenu	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...