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Koue Bokkeveld meteorite, Koue Bokkeveld Mountain, Witzenberg Local Municipality, Cape Winelands District Municipality, Western Cape, South Africai
Regional Level Types
Koue Bokkeveld meteorite- not defined -
Koue Bokkeveld MountainMountain
Witzenberg Local MunicipalityMunicipality
Cape Winelands District MunicipalityDistrict
Western CapeProvince
South AfricaCountry

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Latitude & Longitude (WGS84):
33° 7' 59'' South , 19° 22' 59'' East
Latitude & Longitude (decimal):
-33.13333,19.38333
GRN:
S23E12
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Ceres41,596 (2012)27.0km
Mindat Locality ID:
31190
Long-form identifier:
mindat:1:2:31190:9
GUID (UUID V4):
0
Other/historical names associated with this locality:
Cold Bokkeveld


Carbonaceous chondrite, fell in 1838.
Classification: CM2 (Mighei-like) Carbonaceous Chondrite

Around mid-morning of 13 October 1838, a NE traveling fireball exploded with detonations and a number of pieces fell to the ground over a large region of/near the Cold Bokkeveld— one piece creating a small crater. The total recovered mass of ~ 5.2 kg included a 2 kg stone. Cold Bokkeveld has been classified as a CM2 (Mighei-like) Carbonaceous Chondrite and is the 4th largest of the 15 observed CM2 Chondrite falls. Like all carbonaceous chondrite, Cold Bokkeveld and other CM carbonaceous chondrites are distinguished by their nearly solar Mg/Si ratios and their somewhat similar oxygen isotope ratios. Within this framework the CM subgroup is further distinguished by small chondrules and inclusions, abundant fine-grained matrix (~70 vol%), and abundant hydrated minerals.

The CM chondrites have received considerable attention for several reasons. The first reason is quite straightforward. Unlike many meteorites, CM Chondrites contain hydrated minerals produced before the meteorites landed on earth. However, it often takes considerable effort to establish that such minerals were not produced after the meteorites reached the earth. A second reason of interest is the presence of complex organic compounds which are significantly different from terrestrial organic compounds of similar molecular weight. A third and more recent discovery driving contemporary research is the presence of diamond, silicon carbide, and other small crystals and phases with presolar gases derived from the epochs before the formation of the solar system.

As Cold Bokkeveld has the 4th largest mass among the recovered CM meteorites, it is an obvious object of interest for those who study meteorites.

Updates, references, photographs are always available from the Meteoritical Society’s “Meteoritical Society Database”.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


31 valid minerals.

Detailed Mineral List:

ⓘ Anhydrite
Formula: CaSO4
Description: Intergrown with Hemihydrate
ⓘ Aragonite
Formula: CaCO3
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Barringerite
Formula: (Fe,Ni)2P
ⓘ Bassanite
Formula: Ca(SO4) · 0.5H2O
ⓘ Calcite
Formula: CaCO3
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Chrysotile
Formula: Mg3(Si2O5)(OH)4
ⓘ Clinoenstatite
Formula: MgSiO3
ⓘ Cronstedtite
Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
ⓘ Daubréelite
Formula: Fe2+Cr3+2S4
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ Fayalite
Formula: Fe2+2(SiO4)
ⓘ 'Fayalite-Forsterite Series'
ⓘ Forsterite
Formula: Mg2(SiO4)
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hibonite
Formula: CaAl12O19
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ Native Iron
Formula: Fe
ⓘ Native Iron var. Kamacite
Formula: (Fe,Ni)
ⓘ Native Sulphur
Formula: S8
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ Perovskite
Formula: CaTiO3
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Rutile
Formula: TiO2
ⓘ Schreibersite
Formula: (Fe,Ni)3P
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Spinel
Formula: MgAl2O4
ⓘ Tochilinite
Formula: Fe2+5-6(Mg,Fe2+)5S6(OH)10
ⓘ Troilite
Formula: FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Iron1.AE.05Fe
ⓘvar. Kamacite1.AE.05(Fe,Ni)
ⓘSchreibersite1.BD.05(Fe,Ni)3P
ⓘBarringerite1.BD.10(Fe,Ni)2P
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘTroilite2.CC.10FeS
ⓘDaubréelite2.DA.05Fe2+Cr3+2S4
ⓘTochilinite2.FD.35Fe2+5-6(Mg,Fe2+)5S6(OH)10
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘPerovskite4.CC.30CaTiO3
ⓘHibonite4.CC.45CaAl12O19
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘBassanite7.CD.45Ca(SO4) · 0.5H2O
Group 9 - Silicates
ⓘChrysotile9.00.Mg3(Si2O5)(OH)4
ⓘFayalite9.AC.05Fe2+2(SiO4)
ⓘForsterite9.AC.05Mg2(SiO4)
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘClinoenstatite9.DA.10MgSiO3
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘCronstedtite9.ED.15Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ BassaniteCa(SO4) · 0.5H2O
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ AnhydriteCaSO4
Oⓘ AragoniteCaCO3
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BassaniteCa(SO4) · 0.5H2O
Oⓘ CalciteCaCO3
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ ClinoenstatiteMgSiO3
Oⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Oⓘ DiopsideCaMgSi2O6
Oⓘ DolomiteCaMg(CO3)2
Oⓘ EnstatiteMg2Si2O6
Oⓘ FayaliteFe22+(SiO4)
Oⓘ ForsteriteMg2(SiO4)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HiboniteCaAl12O19
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ PerovskiteCaTiO3
Oⓘ RutileTiO2
Oⓘ SpinelMgAl2O4
Oⓘ TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
Oⓘ Fayalite-Forsterite Series
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
NaSodium
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ ClinoenstatiteMgSiO3
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ ForsteriteMg2(SiO4)
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mgⓘ SpinelMgAl2O4
Mgⓘ TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ HiboniteCaAl12O19
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alⓘ SpinelMgAl2O4
SiSilicon
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ ClinoenstatiteMgSiO3
Siⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Siⓘ DiopsideCaMgSi2O6
Siⓘ EnstatiteMg2Si2O6
Siⓘ FayaliteFe22+(SiO4)
Siⓘ ForsteriteMg2(SiO4)
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ Fayalite-Forsterite Series
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
Pⓘ Barringerite(Fe,Ni)2P
Pⓘ Schreibersite(Fe,Ni)3P
SSulfur
Sⓘ AnhydriteCaSO4
Sⓘ BassaniteCa(SO4) · 0.5H2O
Sⓘ DaubréeliteFe2+Cr23+S4
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyrrhotiteFe1-xS
Sⓘ Native SulphurS8
Sⓘ TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
Sⓘ TroiliteFeS
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ AragoniteCaCO3
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ BassaniteCa(SO4) · 0.5H2O
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ HiboniteCaAl12O19
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caⓘ PerovskiteCaTiO3
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ PerovskiteCaTiO3
Tiⓘ RutileTiO2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ DaubréeliteFe2+Cr23+S4
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ Barringerite(Fe,Ni)2P
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Feⓘ DaubréeliteFe2+Cr23+S4
Feⓘ FayaliteFe22+(SiO4)
Feⓘ IlmeniteFe2+TiO3
Feⓘ Native IronFe
Feⓘ Native Iron var. Kamacite(Fe,Ni)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ PyrrhotiteFe1-xS
Feⓘ Schreibersite(Fe,Ni)3P
Feⓘ TochiliniteFe2+5-6(Mg,Fe2+)5S6(OH)10
Feⓘ TroiliteFeS
Feⓘ Fayalite-Forsterite Series
NiNickel
Niⓘ Barringerite(Fe,Ni)2P
Niⓘ Native Iron var. Kamacite(Fe,Ni)
Niⓘ Pentlandite(NixFey)Σ9S8
Niⓘ Schreibersite(Fe,Ni)3P

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
South Africa

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

Maclear, T., and Faraday, M., (1839) An Account of the Fall of a Meteoric Stone in the Cold Bokkeveld, Cape of Good Hope. Philosophical Transactions of the Royal Society of London: 129: 83-87.
Mason, Brian (1963) The carbonaceous chondrites. Space Science Reviews, 1 (4). 621-646 doi:10.1007/bf00212446
Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025
Vdovykin, GennadyP. (1973) The Mighei meteorite. Space Science Reviews, 14 (6). 832-879 doi:10.1007/bf00224777
MacDougall, J. D. and Phinney, D. (1977) Olivine separates from Murchison and Cold Bokkeveld - Particle tracks and noble gases. In: Lunar Science Conference, 8th, Houston, Tex., March 14-18, 1977, Proceedings. Volume 1. (A78-41551 18-91) New York, Pergamon Press, Inc., 1977, pp 293-311.
Barber, D. J. (1985) Phyllosilicates and other layer-structured materials in stony meteorites. Clay Minerals, 20 (4) 415-454 doi:10.1180/claymin.1985.020.4.01
Kallemeyn, G, W., & Wasson J. T., (1991) The compositional classification of chondrites—I. The carbonaceous chondrite groups. Geochimica et Cosmochimica Acta. 45: 1217-1230.
Lee, M. R., (1993) The petrography, mineralogy and origins of calcium sulphate within the Cold Bokkeveld CM carbonaceous chondrite. Meteoritics. 28(1): 53-62. (March, 1993).
Grady, Monica (2000) Catalogue of Meteorites (5th ed.). Cambridge University Press.
Zega, T. J., & Buseck P. R., (2003) Fine-grained-rim mineralogy of the Cold Bokkeveld CM chondrite. Geochimica et Cosmochimica Acta. 67(9): 1711-1721. (May, 2003)
Bullock, E. S., McKeegan, K, D., Gounelle, M., Grady M. M., & Russell, S. S., (2010 ) Meteoritics & Planetary Science. 45(5): 885–898. (May, 2010).
de Leuw, S, Rubin, A. E., & Wasson J. T., (2010) Carbonates in CM2 chondrites: Complex formational histories and comparison to carbonates in CI chondrites. Meteoritics & Planetary Science. 45(4): 513-530. (April, 2010).
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