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Shira Complex, Shira, Bauchi, Nigeriai
Regional Level Types
Shira ComplexComplex
ShiraLocal Government Area
BauchiState
NigeriaCountry

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Latitude & Longitude (WGS84):
11° 30' North , 10° 4' East
Latitude & Longitude (decimal):
Type:
Age:
186 ± 5 Ma
Geologic Time:
Dating method:
Rb-Sr
Reference for age:
Rahaman, M. A., Van Breemen, O., Bowden, P., & Bennett, J. N. (1984). Age migrations of anorogenic ring complexes in Northern Nigeria. The Journal of Geology, 92(2), 173-184. doi.org/10.1086/628847
Mindat Locality ID:
408606
Long-form identifier:
mindat:1:2:408606:5
GUID (UUID V4):
7341e39f-24df-4802-9f94-0f23b7b2aec3


Estimated area of the complex is 152 km². The 3 centres of the complex are aligned NNE-SSE, but only the southern part of the complex is well exposed.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 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:

Aegirine
Formula: NaFe3+Si2O6
Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
'Alkali Feldspar'
'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Astrophyllite
Formula: K2NaFe2+7Ti2Si8O26(OH)4F
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Augite var. Ferrohedenbergite
Formula: (Ca,Mg,Fe)(Fe,Mg)Si2O6
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Chevkinite Group'
Fayalite
Formula: Fe2+2SiO4
'Feldspar Group'
'Feldspar Group var. Perthite'
Ferro-richterite
Formula: {Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
Ilmenite
Formula: Fe2+TiO3
Narsarsukite
Formula: Na4(Ti,Fe)2[Si8O20](O,OH,F)2
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
'Pyroxene Group'
Formula: ADSi2O6
Quartz
Formula: SiO2
'Sodic amphibole'
Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
Group 9 - Silicates
Fayalite9.AC.05Fe2+2SiO4
Zircon9.AD.30Zr(SiO4)
Augite
var. Ferrohedenbergite
9.DA.15(Ca,Mg,Fe)(Fe,Mg)Si2O6
9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Aegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Aegirine9.DA.25NaFe3+Si2O6
Astrophyllite9.DC.05K2NaFe2+7Ti2Si8O26(OH)4F
Ferro-richterite9.DE.20{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2
Arfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Aenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
Narsarsukite9.DJ.05Na4(Ti,Fe)2[Si8O20](O,OH,F)2
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Alkali Feldspar'-
'Feldspar Group
var. Perthite'
-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Pyroxene Group'-ADSi2O6
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Chevkinite Group'-
'Sodic amphibole'-
'Feldspar Group'-

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
H AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
H NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
H ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
O AegirineNaFe3+Si2O6
O Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
O AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
O Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
O AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O FayaliteFe22+SiO4
O Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
O IlmeniteFe2+TiO3
O NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
O QuartzSiO2
O ZirconZr(SiO4)
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O Pyroxene GroupADSi2O6
O ApatiteCa5(PO4)3(Cl/F/OH)
O Augite var. Ferrohedenbergite(Ca,Mg,Fe)(Fe,Mg)Si2O6
FFluorine
F Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AegirineNaFe3+Si2O6
Na Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Na AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Na Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Na AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Na Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Na NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mg Augite var. Ferrohedenbergite(Ca,Mg,Fe)(Fe,Mg)Si2O6
AlAluminium
Al Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Al Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si AegirineNaFe3+Si2O6
Si Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Si AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Si Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Si AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si FayaliteFe22+SiO4
Si Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Si NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
Si QuartzSiO2
Si ZirconZr(SiO4)
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si Pyroxene GroupADSi2O6
Si Augite var. Ferrohedenbergite(Ca,Mg,Fe)(Fe,Mg)Si2O6
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Cl Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Ca Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca Augite var. Ferrohedenbergite(Ca,Mg,Fe)(Fe,Mg)Si2O6
TiTitanium
Ti AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Ti Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti IlmeniteFe2+TiO3
Ti NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
FeIron
Fe AegirineNaFe3+Si2O6
Fe Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Fe AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Fe Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Fe AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe FayaliteFe22+SiO4
Fe Ferro-richterite{Na}{CaNa}{Fe52+}(Si8O22)(OH)2
Fe IlmeniteFe2+TiO3
Fe NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
Fe Augite var. Ferrohedenbergite(Ca,Mg,Fe)(Fe,Mg)Si2O6
ZrZirconium
Zr ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate
West AfricaUN Subregion

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

 
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