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:
Jebel Arkenu (Jabal Arknū), Al Kufrah District, Libya

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

mindat Locality ID: 227091
mindat URL: http://www.mindat.org/loc-227091.html

Tectonic Settings:

Total number of sublocalities beneath "Jebel Arkenu (Jabal Arknū), Al Kufrah District, Libya": 0
Total number of bottom-level sublocalities: 0

Latitude: 22°16'0"N
Longitude: 24°42'0"E
Decimal Degree (lat, lon): 22.266666666667,24.7

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.

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

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

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

21 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	66	2.6	1022
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	66	2.6	1627
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	66	2.6	295
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	66	2.6	2060
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	66	2.6	232
Catapleiite ()*	Catapleiite	Na₂Zr(Si₃O₉)·2H₂O	66	2.6	113
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	66	2.6	327
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂	66	2.6	182
Ferro-katophorite ()*	Amphibole	Na(NaCa)(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	66	2.6	38
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	66	2.6	2740
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	66	2.6	5433
Keldyshite ()*	None	Na₂ZrSi₂O₇	66	2.6	9
Låvenite ()*	Wöhlerite	(Na,Ca)₄(Mn²⁺,Fe²⁺)₂(Zr,Ti,Nb)₂(Si₂O₇)₂(O,F)₄	66	2.6	58
Lorenzenite ()*	None	Na₂Ti₂O₃(Si₂O₆)	66	2.6	82
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	66	2.6	14899
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	66	2.6	1236
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	66	2.6	884
Quartz ()*	Quartz	SiO₂	66	2.6	61156
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl	66	2.6	444
Titanite ()*	Titanite	CaTi(SiO₄)O	66	2.6	4899
Zircon ()*	Zircon	Zr(SiO₄)	66	2.6	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...