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Kokerboomrand pegmatite, Steinkopf, Nama Khoi Local Municipality, Namakwa District Municipality, Northern Cape, South Africai
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Latitude & Longitude (WGS84):
28° 59' 53'' South , 17° 49' 33'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
About 1.6 kn east of the main road from Vioolsdrif to Springbok, opposite the turnoff to Noumas. It strikes southwards, plunges to the north and dips about 70° to the west. It has been exposed over a length of 50 m, varies in width between 8 and 12 m and has been mined to a depth of 12 m.
LCT pegmatite
The Kokerboomrand II pegmatite is exposed in a 2-3 m deep extraction pit. It forms a lens ~40 m in length and 5-15 m in thickness, striking subvertically at ~150°, either discordant or subconcordant to the foliation of the metagranodioritic country rock.
The Kokerboomrand I pegmatite was mined to a depth of ~11 m and is exposed over a surface area of 45 by 10 m. The lens-like body intrudes the Gaarseep metagranodiorite and strikes NW-SE with a dip angle of ~75° toward the SW and plunges northward .
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
7 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | 'Microlite Group' | 4.00. | A2-mTa2X6-wZ-n |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Lepidolite' | - | |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Tantalite' | - | (Mn,Fe)(Ta,Nb)2O6 |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Feldspar Group var. Perthite' | - | |
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Columbite-(Fe)-Columbite-(Mn) Series' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Li | Lithium | |
| Li | ⓘ Spodumene | LiAlSi2O6 |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Spodumene | LiAlSi2O6 |
| O | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| O | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Spodumene | LiAlSi2O6 |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Spodumene | LiAlSi2O6 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| P | Phosphorus | |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mn | Manganese | |
| Mn | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Mn | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Fe | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
| Nb | ⓘ Columbite-(Fe)-Columbite-(Mn) Series | |
| Ta | Tantalum | |
| Ta | ⓘ Microlite Group | A2-mTa2X6-wZ-n |
| Ta | ⓘ Tantalite | (Mn,Fe)(Ta,Nb)2O6 |
Other Regions, Features and Areas containing this locality
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References
[1]Ballouard, Christophe; Elburg, Marlina A.; Tappe, Sebastian; Reinke, Christian; Ueckermann, Henriette; Doggart, Shane (2020) Magmatic-hydrothermal evolution of rare metal pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa). Ore Geology Reviews, 116. doi:10.1016/j.oregeorev.2019.103252
