Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Benfontein sills, Kimberley, Sol Plaatje Local Municipality, Frances Baard District Municipality, Northern Cape, South Africai
Regional Level Types
Benfontein sillsGroup of Sills
KimberleyCity
Sol Plaatje Local MunicipalityMunicipality
Frances Baard District MunicipalityDistrict Municipality
Northern CapeProvince
South AfricaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
28° 49' South , 24° 49' East
Latitude & Longitude (decimal):
-28.81667,24.81667
GRN:
S20E16
Type:
Group of Sills
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Kimberley142,089 (2012)10.8km
Ritchie9,960 (2014)32.2km
Barkly West11,621 (2012)42.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Kimberly Lapidary ClubHadison Park, Northern Cape10km
Mindat Locality ID:
203951
Long-form identifier:
mindat:1:2:203951:3
GUID (UUID V4):
0


3 kimberlite sills.

Apparently located in Free State, not in Northern Cape.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 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:

ⓘ 'Ancylite'
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Baddeleyite
Formula: ZrO2
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ 'Fayalite-Forsterite Series'
ⓘ Glagolevite
Formula: Na(Mg,Al)6(AlSi3O10)(OH,O)8
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Monticellite
Formula: CaMg(SiO4)
ⓘ 'Olivine Group'
Formula: M2SiO4
ⓘ Perovskite
Formula: CaTiO3
ⓘ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ Spinel
Formula: MgAl2O4
ⓘ Spinel var. Pleonaste
Formula: (Mg,Fe)Al2O4
ⓘ Ulvöspinel
Formula: TiFe2+2O4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘUlvöspinel4.BB.05TiFe2+2O4
ⓘSpinel
var. Pleonaste		4.BB.05(Mg,Fe)Al2O4
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘPerovskite4.CC.30CaTiO3
ⓘBaddeleyite4.DE.35ZrO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘMonticellite9.AC.10CaMg(SiO4)
ⓘGlagolevite9.EC.55Na(Mg,Al)6(AlSi3O10)(OH,O)8
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Ancylite'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
Hⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ BaddeleyiteZrO2
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ DolomiteCaMg(CO3)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MonticelliteCaMg(SiO4)
Oⓘ PerovskiteCaTiO3
Oⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Oⓘ SpinelMgAl2O4
Oⓘ UlvöspinelTiFe22+O4
Oⓘ Spinel var. Pleonaste(Mg,Fe)Al2O4
Oⓘ Fayalite-Forsterite Series
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Olivine GroupM2SiO4
FFluorine
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ MonticelliteCaMg(SiO4)
Mgⓘ SpinelMgAl2O4
Mgⓘ Spinel var. Pleonaste(Mg,Fe)Al2O4
Mgⓘ Fayalite-Forsterite Series
Mgⓘ GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
AlAluminium
Alⓘ SpinelMgAl2O4
Alⓘ Spinel var. Pleonaste(Mg,Fe)Al2O4
Alⓘ GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
SiSilicon
Siⓘ MonticelliteCaMg(SiO4)
Siⓘ Fayalite-Forsterite Series
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ GlagoleviteNa(Mg,Al)6(AlSi3O10)(OH,O)8
Siⓘ Olivine GroupM2SiO4
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ BaryteBaSO4
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ MonticelliteCaMg(SiO4)
Caⓘ PerovskiteCaTiO3
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ PerovskiteCaTiO3
Tiⓘ UlvöspinelTiFe22+O4
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ UlvöspinelTiFe22+O4
Feⓘ Spinel var. Pleonaste(Mg,Fe)Al2O4
Feⓘ Fayalite-Forsterite Series
ZrZirconium
Zrⓘ BaddeleyiteZrO2
NbNiobium
Nbⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
BaBarium
Baⓘ BaryteBaSO4

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

www.getamap.net (n.d.) http://www.getamap.net/maps/south_africa/free_state/_benfontein/
Scatena-Wachel, D.E. and Jones, A.P. (1984) Primary Baddeleyite (ZrO2) in Kimberlite from Benfontein, South Africa. Mineralogical Magazine, 48(347), 257-261.
Castillo-Oliver, Montgarri, Giuliani, Andrea, Griffin, William, O'Reilly, Suzanne, Drysdale, Russell, Ling, Xiaoxiao, and Li, Xian-Hua (2018) The origin of carbonates in the Benfontein kimberlite sills: an in situ C-O-Sr approach. Abstracts of the 22nd IMA Meeting Melbourne, 127.
Abersteiner, A., Kamenetsky, V. S., Goemann, K., Giuliani, A., Howarth, G. H., Castillo-Oliver, M., ... & Cherry, A. (2019). Composition and emplacement of the Benfontein kimberlite sill complex (Kimberley, South Africa): Textural, petrographic and melt inclusion constraints. Lithos, 324, 297-314.
Quick NavTopMineral ListRock TypesOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 19, 2026 12:08:36 Page updated: December 15, 2025 14:46:21
Go to top of page