Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Finsch mine, Lime Acres, Kgatelopele, ZF Mgcawu, Northern Cape, South Africai
Regional Level Types
Finsch mineMine
Lime AcresTown
KgatelopeleMunicipality
ZF MgcawuDistrict Municipality
Northern CapeProvince
South AfricaCountry

This page is currently not sponsored. Contact us for sponsorship opportunities.
Key
Latitude & Longitude (WGS84):
28° 23' 17'' South , 23° 27' 23'' East
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Daniëlskuil10,123 (2013)23.6km
Postmasburg30,089 (2018)38.7km
Owned/operated by:
Other/historical names associated with this locality:
Asbestos hills


Finsch is one of the world’s significant diamond mines and South Africa’s second-largest diamond operation by production (after De Beers’ Venetia mine).
Located 2 km from Lime Acres.

The pipe was discovered in 1960 by two prospectors, Fincham and Schwabel, for whom it was named, while prospecting for asbestos in the Asbestos hills, about 150 km west of Kimberley. They established Finsch Diamonds in 1960, but De Beers gained a controlling interest in the deposit in 1963.

The mine was officially opened in 1967. Ore extraction was initially from the open pit. Sinking of the main shaft to access the mine from underground started in 1978. Two vertical shaft complexes, tunnels and ground handling infrastructure were prepared for the continuing exploitation of the pipe with the use of highly mechanised mining methods. In 2008 the treatment plant was upgraded at a cost of approximately US$100 million. On 14 September 2011, Petra Diamonds purchased Finsch as a fully-staffed, operating mine from De Beers.

Finsch is known for highly commercial goods of +5 carats and is rich in gem-quality smaller diamonds. Large, special diamonds are also a feature of the orebody, with a number of +50 carat stones recovered at the mine annually, and the mine also produces very rare fancy yellow diamonds.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


9 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Chromite
Formula: Fe2+Cr3+2O4
Reference: Contributions to Mineralogy and Petrology (Historical Archives), V 110, N 1, March 1992, pp. 133-138.
Diamond
Formula: C
Reference: Gübelin, E. and Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel (in Dutch).; O'Neil, P. (1983) Planet Earth - Gemstones. Time-Life Books, Arlington, Virginia, USA, 176 pages.; Contributions to Mineralogy and Petrology (Historical Archives), V 110, N 1, March 1992, pp. 133-138.
Diopside
Formula: CaMgSi2O6
Reference: Henrietta Farr, Andrea Giuliani, David Phillips (2018) Melt evolution of the Finsch orangeite, South Africa. in abstracts of the 22nd IMA Meeting Melbourne p 423
Enstatite
Formula: Mg2Si2O6
Reference: Contributions to Mineralogy and Petrology (Historical Archives), V 110, N 1, March 1992, pp. 133-138.
'Fayalite-Forsterite Series'
Reference: Henrietta Farr, Andrea Giuliani, David Phillips (2018) Melt evolution of the Finsch orangeite, South Africa. in abstracts of the 22nd IMA Meeting Melbourne p 423
Forsterite
Formula: Mg2SiO4
Reference: Contributions to Mineralogy and Petrology (Historical Archives), V 110, N 1, March 1992, pp. 133-138.
Graphite
Formula: C
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
'Mica Group'
Reference: Henrietta Farr, Andrea Giuliani, David Phillips (2018) Melt evolution of the Finsch orangeite, South Africa. in abstracts of the 22nd IMA Meeting Melbourne p 423
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Henrietta Farr, Andrea Giuliani, David Phillips (2018) Melt evolution of the Finsch orangeite, South Africa. in abstracts of the 22nd IMA Meeting Melbourne p 423
Pyrope
Formula: Mg3Al2(SiO4)3
Reference: Contributions to Mineralogy and Petrology (Historical Archives), V 110, N 1, March 1992, pp. 133-138.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Reference: Henrietta Farr, Andrea Giuliani, David Phillips (2018) Melt evolution of the Finsch orangeite, South Africa. in abstracts of the 22nd IMA Meeting Melbourne p 423
Tetraferriphlogopite
Formula: KMg3(Fe3+Si3O10)(OH,F)2
Reference: Henrietta Farr, Andrea Giuliani, David Phillips (2018) Melt evolution of the Finsch orangeite, South Africa. in abstracts of the 22nd IMA Meeting Melbourne p 423

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Graphite1.CB.05aC
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Group 9 - Silicates
Diopside9.DA.15CaMgSi2O6
Enstatite9.DA.05Mg2Si2O6
Forsterite9.AC.05Mg2SiO4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Pyrope9.AD.25Mg3Al2(SiO4)3
Tetraferriphlogopite9.EC.20KMg3(Fe3+Si3O10)(OH,F)2
Unclassified Minerals, Rocks, etc.
'Fayalite-Forsterite Series'-
'Mica Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Graphite1.3.6.2C
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Pyrope51.4.3a.1Mg3Al2(SiO4)3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1Mg2Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Mixtures, etc.
'Fayalite-Forsterite Series'-
'Mica Group'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Tetraferriphlogopite-KMg3(Fe3+Si3O10)(OH,F)2

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
H TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
CCarbon
C DiamondC
C GraphiteC
OOxygen
O ForsteriteMg2SiO4
O EnstatiteMg2Si2O6
O ChromiteFe2+Cr23+O4
O PyropeMg3Al2(SiO4)3
O DiopsideCaMgSi2O6
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
O TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
FFluorine
F TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
MgMagnesium
Mg ForsteriteMg2SiO4
Mg EnstatiteMg2Si2O6
Mg PyropeMg3Al2(SiO4)3
Mg DiopsideCaMgSi2O6
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Mg TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
AlAluminium
Al PyropeMg3Al2(SiO4)3
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si ForsteriteMg2SiO4
Si EnstatiteMg2Si2O6
Si PyropeMg3Al2(SiO4)3
Si DiopsideCaMgSi2O6
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Si TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
K TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
CaCalcium
Ca DiopsideCaMgSi2O6
CrChromium
Cr ChromiteFe2+Cr23+O4
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe ChromiteFe2+Cr23+O4
Fe Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
Fe TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Gübelin, E. and Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel (in Dutch).
Gurney, J.J., Harris, J.W., and Rickard, R.S. (1979) Silicate and oxide inclusions in diamonds from the Finsch kimberlite pipe. In: Boyd, F.R., and H.O.A. Meyer, H.O.A. (Eds.): Kimberlites, Diatremes and Diamonds: their Geology and Petrology and Geochemistry, Vol. 1: 1-15. American Geophysical Union, Washington, D.C.
O'Neil, P. (1983) Gemstones (Planet Earth Series). Time-Life Education, 176 pp.
Contributions to Mineralogy and Petrology (1992) Historical Archives 110(1), 133-138.
Morris, N. (2005) Diamonds and other gems. Appleseed Editions Ltd, East Sussex.
Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008) Kimberlite-hosted diamond deposits of southern Africa: A review. Ore Geology Reviews, 34, 33-75.
Farr, Henrietta, Giuliani, Andrea, and Phillips, David (2018) Melt evolution of the Finsch orangeite, South Africa. Abstracts of the 22nd IMA Meeting Melbourne, p. 423.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Finsch_diamond_mine
Wikidata ID:Q5450936

External Links


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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: April 4, 2020 07:55:06
Go to top of page