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Salpeterkop Mountain (Saltpetre Kop), Sutherland, Karoo Hoogland Local Municipality, Namakwa District Municipality, Northern Cape, South Africai
Regional Level Types
Salpeterkop Mountain (Saltpetre Kop)Mountain
Sutherland- not defined -
Karoo Hoogland Local MunicipalityMunicipality
Namakwa District MunicipalityDistrict Municipality
Northern CapeProvince
South AfricaCountry

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Latitude & Longitude (WGS84):
32° 28' 0'' South , 20° 49' 60'' East
Latitude & Longitude (decimal):
-32.46667,20.83333
GeoHash:
G#: k6nz61d7g
GRN:
S22E13
Type:
Mountain
KΓΆppen climate type:
BWk : Cold desert climate
Mindat Locality ID:
27329
Long-form identifier:
mindat:1:2:27329:2
GUID (UUID V4):
2edd41d2-76c4-4fba-a00a-151ca969bd98


Salpeterkop carbonatite complex carbonatites and trachytes, olivine melilitites dated 75 Ma.

Salpeterkop is a circular structure of Cretaceous age located 20 km southeast of Sutherland in the Cape Province. It consists of a conical hill (kop) 5 km in diameter rising 150 m above the surrounding landscape. Salpeterkop comprises igneous rocks (e.g. carbonatite) and breccias that have intruded the surrounding sandstone, siltstone and shales of the Karoo Supergroup. The closest related feature to Salpeterkop is found 780 km to the north in Namibia, the Gross Brukkaros structure, which has a similar circular shape, age and rock type.

Although the "kop" (hill) is the main feature, a number of smaller satellite bodies surround it. Volcanic vents, sills and dykes are related to the main intrusion and these consist of carbonatite (carbonate-rich intrusive rocks), trachyte (extrusive rocks composed of alkali feldspar and minor biotite, hornblende or pyroxene), and olivine melilitite (extrusive igneous rock composed of minor feldspathoids, olivine, augite and the akermanite-gehlenite series). (From Cairncross and Dixon 1995, page 152)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


16 valid minerals.

Detailed Mineral List:

β“˜ Analcime
Formula: Na(AlSi2O6) · H2O
β“˜ Baryte
Formula: BaSO4
Description: Well formed spear shaped crystals, can be associated with minor fluorite, lining vugs, veins and cavities.
β“˜ Brookite
Formula: TiO2
β“˜ Calcite
Formula: CaCO3
β“˜ Eudialyte
Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
β“˜ Fluorite
Formula: CaF2
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
β“˜ Nepheline
Formula: Na3K(Al4Si4O16)
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Chalcedony
Formula: SiO2
β“˜ Rutile
Formula: TiO2
β“˜ Rutile var. Ilmenorutile
Formula: (Ti,Nb)O2
β“˜ Siderite
Formula: FeCO3
β“˜ Thorianite
Formula: ThO2
β“˜ Thorite
Formula: Th(SiO4)
β“˜ 'Wad'
β“˜ 'Xenotime'
β“˜ Xenotime-(Y)
Formula: Y(PO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Quartz
var. Chalcedony		4.DA.05SiO2
β“˜4.DA.05SiO2
β“˜Rutile4.DB.05TiO2
β“˜var. Ilmenorutile4.DB.05(Ti,Nb)O2
β“˜Brookite4.DD.10TiO2
β“˜Thorianite4.DL.05ThO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
β“˜Thorite9.AD.30Th(SiO4)
β“˜Eudialyte9.CO.10Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
β“˜Nepheline9.FA.05Na3K(Al4Si4O16)
β“˜Natrolite9.GA.05Na2Al2Si3O10 Β· 2H2O
β“˜Analcime9.GB.05Na(AlSi2O6) Β· H2O
Unclassified
β“˜'Wad'-
β“˜'Xenotime'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ AnalcimeNa(AlSi2O6) · H2O
Hβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ GypsumCaSO4 · 2H2O
Hβ“˜ NatroliteNa2Al2Si3O10 · 2H2O
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ AnalcimeNa(AlSi2O6) · H2O
Oβ“˜ BaryteBaSO4
Oβ“˜ BrookiteTiO2
Oβ“˜ CalciteCaCO3
Oβ“˜ Quartz var. ChalcedonySiO2
Oβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ Rutile var. Ilmenorutile(Ti,Nb)O2
Oβ“˜ NephelineNa3K(Al4Si4O16)
Oβ“˜ NatroliteNa2Al2Si3O10 · 2H2O
Oβ“˜ QuartzSiO2
Oβ“˜ RutileTiO2
Oβ“˜ SideriteFeCO3
Oβ“˜ ThorianiteThO2
Oβ“˜ ThoriteTh(SiO4)
Oβ“˜ Xenotime-(Y)Y(PO4)
FFluorine
Fβ“˜ FluoriteCaF2
NaSodium
Naβ“˜ AnalcimeNa(AlSi2O6) · H2O
Naβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Naβ“˜ NephelineNa3K(Al4Si4O16)
Naβ“˜ NatroliteNa2Al2Si3O10 · 2H2O
AlAluminium
Alβ“˜ AnalcimeNa(AlSi2O6) · H2O
Alβ“˜ NephelineNa3K(Al4Si4O16)
Alβ“˜ NatroliteNa2Al2Si3O10 · 2H2O
SiSilicon
Siβ“˜ AnalcimeNa(AlSi2O6) · H2O
Siβ“˜ Quartz var. ChalcedonySiO2
Siβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Siβ“˜ NephelineNa3K(Al4Si4O16)
Siβ“˜ NatroliteNa2Al2Si3O10 · 2H2O
Siβ“˜ QuartzSiO2
Siβ“˜ ThoriteTh(SiO4)
PPhosphorus
Pβ“˜ Xenotime-(Y)Y(PO4)
SSulfur
Sβ“˜ BaryteBaSO4
Sβ“˜ GypsumCaSO4 · 2H2O
ClChlorine
Clβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
KPotassium
Kβ“˜ NephelineNa3K(Al4Si4O16)
CaCalcium
Caβ“˜ CalciteCaCO3
Caβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Caβ“˜ FluoriteCaF2
Caβ“˜ GypsumCaSO4 · 2H2O
TiTitanium
Tiβ“˜ BrookiteTiO2
Tiβ“˜ Rutile var. Ilmenorutile(Ti,Nb)O2
Tiβ“˜ RutileTiO2
FeIron
Feβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ SideriteFeCO3
YYttrium
Yβ“˜ Xenotime-(Y)Y(PO4)
ZrZirconium
Zrβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
NbNiobium
Nbβ“˜ Rutile var. Ilmenorutile(Ti,Nb)O2
BaBarium
Baβ“˜ BaryteBaSO4
ThThorium
Thβ“˜ ThorianiteThO2
Thβ“˜ ThoriteTh(SiO4)

Other Regions, Features and Areas containing this locality

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

De Wet, J.J., (1975). Carbonatites and related rocks at Salpetre Kop, Sutherland, Cape Province. Annals of the University of Stellenbosch, Series A1 (Geology), 1, 193-232.
Matheys, F. G. (1990) The alluvial diamond deposits of the lower Vaal river between Barkly West and the Vaal-Harts confluence in the Northern Cape Province, South Africa. Rhodes University.
Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, Linden .
Verwoerd, W. J., Viljoen, E. A., & Chevallier, L. (1995). Rare metal mineralization at the Salpeterkop carbonatite complex, Western Cape Province, South Africa. Journal of African Earth Sciences, 21(1), 171-186.
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