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Jabal Aja Complex, Ha'il Region, Saudi Arabiai
Regional Level Types
Jabal Aja ComplexComplex
Ha'il RegionRegion
Saudi ArabiaCountry

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Latitude & Longitude (WGS84):
27° 33' 0'' North , 41° 28' 59'' East
Latitude & Longitude (decimal):
27.55000,41.48333
GeoHash:
G#: suvkxzr4r
GRN:
N19E27
Type:
Complex
Age:
570 Β± 19 Ma
Geologic Time:
Ediacaran
Dating method:
Th-Pb isochron
Reference for age:
Stuckless, J. S., Hedge, C. E., Wenner, D. B., & Nkomo, I. T. (1985). Isotopic studies of postorogenic granites from the northeastern Arabian Shield, Kingdom of Saudi Arabia. United States Geological Survey, Open File Report 85-126.
KΓΆppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
341882
Long-form identifier:
mindat:1:2:341882:9
GUID (UUID V4):
41a2b301-aa3d-4823-aaac-5878bc0ce990
Other Languages:
View 1 more...
Arabic:
Ω…Ψ­Ω…ΩŠΨ© Ψ¬Ψ¨Ω„ Ψ’Ψ¬Ψ§, Ω…Ω†Ψ·Ω‚Ψ© Ψ­Ψ§Ψ¦Ω„, Ψ§Ω„Ψ³ΨΉΩˆΨ―ΩŠΨ©


Large peralkaline, post-orogenic body that forms an elliptical intrusion of c. 80 x 20km. There is an outer ring of peralkaline granite with a complex core of granophyre and micrographic granite, within which is a 5km long xenolith of comenditic rhyolites; peralkaline rhyolites partially cap the complex.

Includes highly mineralized, pink pegmatites, rich in Nb, Ta, Y, Zr, Hf, U, and REE (Th included). In addition to REE-rich minerals, a (Sc,Y,β—»)-rich pyroxenoid is described from such pegmatites by Gahlan et al. (2021). The bustamite from this pegmatite is also vacancy rich and has excess, VISi.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


15 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Aegirine
Formula: NaFe3+Si2O6
References:
du Bray, E.A. & Stoeser, D.B. 1985. Reconnaisance Geology of the Al Hufayr Quadrangle, Sheet 27/41A, Kingdom of Saudi Arabia. United States Geological Survey, Open-File Report 85-14.
du Bray, E.A. & Stoeser, D.B. 1985. Reconnaisance Geology of the Al Hufayr Quadrangle, Sheet 27/41A, Kingdom of Saudi Arabia. United States Geological Survey, Open-File Report 85-14.
Stuckless, J. S., Hedge, C. E., Wenner, D. B., & Nkomo, I. T. (1985). Isotopic studies of postorogenic granites from the northeastern Arabian Shield, Kingdom of Saudi Arabia. United States Geological Survey, Open File Report 85-126.
Harris, N. B. W. (1985). Alkaline complexes from the Arabian Shield. Journal of African Earth Sciences (1983), 3(1-2), 83-88.
Stuckless, J. S., Hedge, C. E., Wenner, D. B., & Nkomo, I. T. (1985). Isotopic studies of postorogenic granites from the northeastern Arabian Shield, Kingdom of Saudi Arabia. United States Geological Survey, Open File Report 85-126.
Harris, N. B. W. (1985). Alkaline complexes from the Arabian Shield. Journal of African Earth Sciences (1983), 3(1-2), 83-88.
Aleinikoff, J. N., & Stoeser, D. B. (1988). Zircon morphology and U-Pb geochronology of seven metaluminous and peralkaline post-orogenic granite complexes of the Arabian Shield, Kingdom of Saudi Arabia (No. 88-604). US Geological Survey.
Aleinikoff, J. N., & Stoeser, D. B. (1988). Zircon morphology and U-Pb geochronology of seven metaluminous and peralkaline post-orogenic granite complexes of the Arabian Shield, Kingdom of Saudi Arabia (No. 88-604). US Geological Survey.
β“˜ Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
β“˜ Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
β“˜ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Bustamite
Formula: CaMn2+(Si2O6)
β“˜ 'Feldspar Group'
β“˜ 'Feldspar Group var. Perthite'
β“˜ Fluorite
Formula: CaF2
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Pyrochroite
Formula: Mn(OH)2
β“˜ 'Pyroxene Group'
Formula: ADSi2O6
β“˜ Pyroxmangite
Formula: Mn2+SiO3
β“˜ Quartz
Formula: SiO2
β“˜ Spessartine
Formula: Mn2+3Al2(SiO4)3
β“˜ ThalΓ©nite-(Y)
Formula: Y3Si3O10F
β“˜ Thortveitite
Formula: Sc2Si2O7
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Quartz4.DA.05SiO2
β“˜Pyrochroite4.FE.05Mn(OH)2
Group 9 - Silicates
β“˜Spessartine9.AD.25Mn2+3Al2(SiO4)3
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Thortveitite9.BC.05Sc2Si2O7
β“˜ThalΓ©nite-(Y)9.BJ.20Y3Si3O10F
β“˜Aegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
β“˜Aegirine9.DA.25NaFe3+Si2O6
β“˜Arfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
β“˜Bustamite9.DG.05CaMn2+(Si2O6)
β“˜Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
β“˜Pyroxmangite9.DO.05Mn2+SiO3
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
β“˜'Feldspar Group'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Feldspar Group
var. Perthite'		-
β“˜'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ PyrochroiteMn(OH)2
OOxygen
Oβ“˜ AegirineNaFe3+Si2O6
Oβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ BustamiteCaMn2+(Si2O6)
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ PyrochroiteMn(OH)2
Oβ“˜ PyroxmangiteMn2+SiO3
Oβ“˜ QuartzSiO2
Oβ“˜ SpessartineMn32+Al2(SiO4)3
Oβ“˜ ThalΓ©nite-(Y)Y3Si3O10F
Oβ“˜ ThortveititeSc2Si2O7
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Pyroxene GroupADSi2O6
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluoriteCaF2
Fβ“˜ ThalΓ©nite-(Y)Y3Si3O10F
NaSodium
Naβ“˜ AegirineNaFe3+Si2O6
Naβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Naβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Naβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
MgMagnesium
Mgβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ SpessartineMn32+Al2(SiO4)3
SiSilicon
Siβ“˜ AegirineNaFe3+Si2O6
Siβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ BustamiteCaMn2+(Si2O6)
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ PyroxmangiteMn2+SiO3
Siβ“˜ QuartzSiO2
Siβ“˜ SpessartineMn32+Al2(SiO4)3
Siβ“˜ ThalΓ©nite-(Y)Y3Si3O10F
Siβ“˜ ThortveititeSc2Si2O7
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Pyroxene GroupADSi2O6
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caβ“˜ BustamiteCaMn2+(Si2O6)
Caβ“˜ FluoriteCaF2
ScScandium
Scβ“˜ ThortveititeSc2Si2O7
TiTitanium
Tiβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ IlmeniteFe2+TiO3
MnManganese
Mnβ“˜ BustamiteCaMn2+(Si2O6)
Mnβ“˜ PyrochroiteMn(OH)2
Mnβ“˜ PyroxmangiteMn2+SiO3
Mnβ“˜ SpessartineMn32+Al2(SiO4)3
FeIron
Feβ“˜ AegirineNaFe3+Si2O6
Feβ“˜ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Feβ“˜ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Feβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ IlmeniteFe2+TiO3
YYttrium
Yβ“˜ ThalΓ©nite-(Y)Y3Si3O10F
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)

Geochronology

Mineralization age: Neoproterozoic : 566 Β± 4 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Precambrian
 Proterozoic
  Neoproterozoic
   Ediacaran
β“˜ Zircon566 Β± 4 Ma

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Jabal_Aja_Protected_Area
Wikidata ID:Q22948566

Other Regions, Features and Areas containing this locality

Arabian PeninsulaPeninsula
Arabian PlateTectonic Plate
AsiaContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

du Bray, E.A., Stoeser, D.B. (1985): Reconnaisance Geology of the Al Hufayr Quadrangle, Sheet 27/41A, Kingdom of Saudi Arabia. United States Geological Survey, Open-File Report 85-14.
Harris, N. B. W. (1985): Alkaline complexes from the Arabian Shield. Journal of African Earth Sciences (1983): 3(1-2): 83-88.
Stuckless, J. S., Hedge, C. E., Wenner, D. B.,Nkomo, I. T. (1985): Isotopic studies of postorogenic granites from the northeastern Arabian Shield, Kingdom of Saudi Arabia. United States Geological Survey, Open File Report 85-126.
Aleinikoff, J. N., & Stoeser, D. B. (1988). Zircon morphology and U-Pb geochronology of seven metaluminous and peralkaline post-orogenic granite complexes of the Arabian Shield, Kingdom of Saudi Arabia (No. 88-604). US Geological Survey.
Woolley A.R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe, p.193-194
Gahlan, H.A., Asimow, P.D., Azer, M.K., Ma, C., Al-khatany, K.M., Hakeem, A.Y. (2021): Geochemistry and mineralogy of the Jebel Aja Igneous Intrusion and the associated exotic pegmatites, Arabian Shield, Saudi Arabia. Lithos: 400-401: 106395.
forum.amiminerals.it (2021) http://forum.amiminerals.it/viewtopic.php?f=5&t=17198&sid=caa89199acc501d3dcefb03b0478b3d8
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