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Kameelburg Complex, Kalkfeld, Otjiwarongo Constituency, Otjozondjupa Region, Namibiai
Regional Level Types
Kameelburg ComplexComplex
KalkfeldVillage
Otjiwarongo ConstituencyConstituency
Otjozondjupa RegionRegion
NamibiaCountry

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Latitude & Longitude (WGS84):
20° 46' 18'' South , 16° 15' 5'' East
Latitude & Longitude (decimal):
-20.77167,16.25155
GRN:
S14E11
Type:
Complex
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
158052
Long-form identifier:
mindat:1:2:158052:8
GUID (UUID V4):
0
Other/historical names associated with this locality:
Ondumakorume, Ondurukurume, Ondurakurume


REE-bearing carbonatite complex (beforsite, sövite, syenite). Located on Etaneno 44 farm, about 10 km NE of Kalkfeld. Carbonatite complex forms a prominent hill rising to 275 m, is approx circular in outline and has a diameter of 1.4 km.

Systematic sampling for phosphate has been undertaken, 350 samples assaying up to 17.3% P₂O₅ with an average of 7% and Nb₂O₅ assaying up to 2.5%. At least 8000000 tons averaging 0.3% Nb₂O₅ may be present (Verwoerd 1967). REE and strontium are also present.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


18 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ 'Alkali pyroxene'
ⓘ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
ⓘ 'Ancylite'
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ Baryte
Formula: BaSO4
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Cancrinite
Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘ Carbocernaite
Formula: (Ca,Na)(Sr,Ce,Ba)(CO3)2
ⓘ Cerianite-(Ce)
Formula: Ce4+O2
ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
References:
Prins, P. 1981. The geochemical evolution of the alkaline and carbonatite complexes of the Damaraland igneous province, South West Africa. Annale Universiteit van Stellenbosch, Serie A1, Geologie, 3, 145-278.
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Le Roex, A. P., Lanyon, R. (1998) Isotope and Trace Element Geochemistry of Cretaceous Damaraland Lamprophyres and Carbonatites, Northwestern Namibia: Evidence for Plume--Lithosphere Interactions. Journal of Petrology, 39 (6) 1117-1146 doi:10.1093/petroj/39.6.1117
Berger, Vladimir I.; Singer, Donald A.; Orris, Greta J. (2009) Carbonatites of the World, Explored Deposits of Nb and REE—Database and Grade and Tonnage Models . Open-File Report 2009-1139. US Geological Survey doi:10.3133/ofr20091139
ⓘ Dolomite var. Iron-bearing Dolomite
Formula: Ca(Mg,Fe)(CO3)2
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Feldspar Group'
ⓘ Galena
Formula: PbS
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ 'Mica Group'
ⓘ 'Microperthite'
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ 'Psilomelane'
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
ⓘ Quartz
Formula: SiO2
References:
Prins, P. 1981. The geochemical evolution of the alkaline and carbonatite complexes of the Damaraland igneous province, South West Africa. Annale Universiteit van Stellenbosch, Serie A1, Geologie, 3, 145-278.
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Le Roex, A. P., Lanyon, R. (1998) Isotope and Trace Element Geochemistry of Cretaceous Damaraland Lamprophyres and Carbonatites, Northwestern Namibia: Evidence for Plume--Lithosphere Interactions. Journal of Petrology, 39 (6) 1117-1146 doi:10.1093/petroj/39.6.1117
Berger, Vladimir I.; Singer, Donald A.; Orris, Greta J. (2009) Carbonatites of the World, Explored Deposits of Nb and REE—Database and Grade and Tonnage Models . Open-File Report 2009-1139. US Geological Survey doi:10.3133/ofr20091139
ⓘ 'Sodic amphibole'
ⓘ Strontianite
Formula: SrCO3
References:
Prins, P. 1981. The geochemical evolution of the alkaline and carbonatite complexes of the Damaraland igneous province, South West Africa. Annale Universiteit van Stellenbosch, Serie A1, Geologie, 3, 145-278.
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Le Roex, A. P., Lanyon, R. (1998) Isotope and Trace Element Geochemistry of Cretaceous Damaraland Lamprophyres and Carbonatites, Northwestern Namibia: Evidence for Plume--Lithosphere Interactions. Journal of Petrology, 39 (6) 1117-1146 doi:10.1093/petroj/39.6.1117
Berger, Vladimir I.; Singer, Donald A.; Orris, Greta J. (2009) Carbonatites of the World, Explored Deposits of Nb and REE—Database and Grade and Tonnage Models . Open-File Report 2009-1139. US Geological Survey doi:10.3133/ofr20091139
ⓘ Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘ'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘCerianite-(Ce)4.DL.05Ce4+O2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘvar. Iron-bearing Dolomite5.AB.10Ca(Mg,Fe)(CO3)2
ⓘStrontianite5.AB.15SrCO3
ⓘCarbocernaite5.AB.50(Ca,Na)(Sr,Ce,Ba)(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘVermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘCancrinite9.FB.05(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5(T8O22)W2
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Feldspar Group'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Psilomelane'-
ⓘ'Mica Group'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Ancylite'-
ⓘ'Microperthite'-
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'Sodic amphibole'-
ⓘ'Alkali pyroxene'-

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Hⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ CalciteCaCO3
Cⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Cⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
Cⓘ DolomiteCaMg(CO3)2
Cⓘ StrontianiteSrCO3
Cⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ Amphibole SupergroupAB2C5(T8O22)W2
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Oⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
Oⓘ Cerianite-(Ce)Ce4+O2
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Monazite GroupREE(PO4)
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Oⓘ QuartzSiO2
Oⓘ StrontianiteSrCO3
Oⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Oⓘ ZirconZr(SiO4)
Oⓘ Fayalite-Forsterite Series
Oⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
Oⓘ ApatiteCa5(PO4)3A
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Naⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
Naⓘ NephelineNa3K(Al4Si4O16)
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Mgⓘ Fayalite-Forsterite Series
Mgⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ QuartzSiO2
Siⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Siⓘ ZirconZr(SiO4)
Siⓘ Fayalite-Forsterite Series
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ BaryteBaSO4
Sⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
Caⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Caⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
Caⓘ ApatiteCa5(PO4)3A
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Feⓘ Fayalite-Forsterite Series
Feⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
SrStrontium
Srⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
Srⓘ StrontianiteSrCO3
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
BaBarium
Baⓘ BaryteBaSO4
Baⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
CeCerium
Ceⓘ Carbocernaite(Ca,Na)(Sr,Ce,Ba)(CO3)2
Ceⓘ Cerianite-(Ce)Ce4+O2
PbLead
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate

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

Prins, P. 1981. The geochemical evolution of the alkaline and carbonatite complexes of the Damaraland igneous province, South West Africa. Annale Universiteit van Stellenbosch, Serie A1, Geologie, 3, 145-278.
Verwoerd, W. J. (1967). The carbonatites of South Africa and South West Africa. Government Printer, South Africa., 6.
Le Roex, A. P., Lanyon, R. (1998) Isotope and Trace Element Geochemistry of Cretaceous Damaraland Lamprophyres and Carbonatites, Northwestern Namibia: Evidence for Plume--Lithosphere Interactions. Journal of Petrology, 39 (6) 1117-1146 doi:10.1093/petroj/39.6.1117
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.206
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Berger, Vladimir I.; Singer, Donald A.; Orris, Greta J. (2009) Carbonatites of the World, Explored Deposits of Nb and REE—Database and Grade and Tonnage Models . Open-File Report 2009-1139. US Geological Survey doi:10.3133/ofr20091139
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