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Granitberg Complex, ǃNamiǂNûs Constituency, ǁKaras Region, Namibiai
Regional Level Types
Granitberg ComplexComplex
ǃNamiǂNûs ConstituencyConstituency
ǁKaras RegionRegion
NamibiaCountry

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Latitude & Longitude (WGS84):
27° 15' 17'' South , 15° 40' 4'' East
Latitude & Longitude (decimal):
-27.25487,15.66803
GeoHash:
G#: k75huw3hg
GRN:
S19E10
Type:
Complex
Köppen climate type:
BWk : Cold desert climate
Mindat Locality ID:
408357
Long-form identifier:
mindat:1:2:408357:6
GUID (UUID V4):
0


Complex is intruded into Precambrian feldspathic sandstones, dolomites and argillaceous rocks and underlying granite gneisses all of which are strongly metasomatized along the contacts.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 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'
References:
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘ Astrophyllite
Formula: K2NaFe2+7Ti2[Si4O12]2O2(OH)4F
References:
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
References:
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
ⓘ Dolomite
Formula: CaMg(CO3)2
References:
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
ⓘ Eudialyte
Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘ 'Eudialyte Group'
Formula: [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
ⓘ 'Eudialyte Group var. Eucolite'
Formula: [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
ⓘ 'Feldspar Group'
ⓘ 'Feldspar Group var. Perthite'
ⓘ Låvenite
Formula: Na2Ca2Mn2Zr2(Si2O7)2O2F2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Perovskite
Formula: CaTiO3
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Quartz
Formula: SiO2
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
ⓘ 'Sodic amphibole'
ⓘ Titanite
Formula: CaTi(SiO4)O
References:
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘPerovskite4.CC.30CaTiO3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘLåvenite9.BE.17Na2Ca2Mn2Zr2(Si2O7)2O2F2
ⓘEudialyte9.CO.10Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘAegirine-augite9.DA.20(NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘAstrophyllite9.DC.05K2NaFe2+7Ti2[Si4O12]2O2(OH)4F
ⓘArfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘAenigmatite9.DH.40Na4[Fe2+10Ti2]O4[Si12O36]
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-
ⓘ'var. Perthite'-
ⓘ'Eudialyte Group
var. Eucolite'		-[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Eudialyte Group'-[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Sodic amphibole'-

List of minerals for each chemical element

HHydrogen
Hⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hⓘ AstrophylliteK2NaFe72+Ti2[Si4O12]2O2(OH)4F
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Oⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Oⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oⓘ AstrophylliteK2NaFe72+Ti2[Si4O12]2O2(OH)4F
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ DolomiteCaMg(CO3)2
Oⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Oⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ PerovskiteCaTiO3
Oⓘ QuartzSiO2
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ Eudialyte Group var. Eucolite[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Eudialyte Group[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ AstrophylliteK2NaFe72+Ti2[Si4O12]2O2(OH)4F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
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+Ti2[Si4O12]2O2(OH)4F
Naⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Naⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ SodaliteNa4(Si3Al3)O12Cl
MgMagnesium
Mgⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DolomiteCaMg(CO3)2
AlAluminium
Alⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ SodaliteNa4(Si3Al3)O12Cl
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Siⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Siⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siⓘ AstrophylliteK2NaFe72+Ti2[Si4O12]2O2(OH)4F
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Siⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ QuartzSiO2
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Eudialyte Group var. Eucolite[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Eudialyte Group[N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]Θ4X(1)X(2)
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Clⓘ SodaliteNa4(Si3Al3)O12Cl
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ AstrophylliteK2NaFe72+Ti2[Si4O12]2O2(OH)4F
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ Aegirine-augite(NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Caⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Caⓘ PerovskiteCaTiO3
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ AenigmatiteNa4[Fe102+Ti2]O4[Si12O36]
Tiⓘ AstrophylliteK2NaFe72+Ti2[Si4O12]2O2(OH)4F
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ PerovskiteCaTiO3
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
MnManganese
Mnⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
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+Ti2[Si4O12]2O2(OH)4F
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
ZrZirconium
Zrⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Zrⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2

Geochronology

Mineralization age: Early/Lower Cretaceous : 130 ± 2 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
Phanerozoic
 Mesozoic
  Cretaceous
   Early/Lower Cretaceous
ⓘ Biotite130 ± 2 Ma

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
Namibia

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

Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Marsh, J. S. (1975) The Luderitz alkaline province, South West Africa. II. Metasomatism and assimilation in the contact aureole of the Granitberg foyaite complex. Transactions of the Geological Society of South Africa, 78. 225-233 doi:10.10520/EJC-1ac87e579d
Marsh, Julian Saville (1975) Aenigmatite stability in silica-undersaturated rocks. Contributions to Mineralogy and Petrology, 50 (2) 135-144 doi:10.1007/bf00373333
Woolley, A. R. (2001) Alkaline Rocks and Carbonatites of the World, Part 3: Africa - Alkaline Rocks and Carbonatites of the World. The Geological Society of London.p.216
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