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Frank Smith Mine, Windsorton, Francis Baard District, Northern Cape, South Africai
Regional Level Types
Frank Smith MineMine
Windsorton- not defined -
Francis Baard DistrictDistrict
Northern CapeProvince
South AfricaCountry

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Latitude & Longitude (WGS84): 28° 14' 57'' South , 24° 30' 26'' East
Latitude & Longitude (decimal): -28.24917,24.50750
GeoHash:G#: kdcrm9mud
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate


A small diamond mine, currently owned by Good Hope Diamonds Pty Ltd. The deposit consists of older kimberlite dykes that are intruded by two younger kimberlite pipes. It is not known when it was discovered, but the company formed to mine it was constituted in 1900. While the diamonds are of excellent quality, the diamond grade is very low. Therefore, the mine was only worked sporadically; it remained closed in the periods 1907-1913, 1914-1920 and 1929-1964. It was worked for some time during the 1990s and is presently still kept under maintenance.

The mine is also well known for its mantle xenoliths, including eclogite, kyanite eclogite, corundum-diamond eclogite, dunite, harzburgite, lherzolite, and garnet harzburgite.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


14 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:

'Clinopyroxene Subgroup'
Reference: Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
Corundum
Formula: Al2O3
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
Diamond
Formula: C
Reference: Minerals of South Africa
'commodity:Diamond'
Reference:  
Diopside
Formula: CaMgSi2O6
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
Diopside var: Chromian Diopside
Formula: Ca(Mg,Cr)Si2O6
Reference: Minerals of South Africa
Djerfisherite
Formula: K6(Fe,Cu,Ni)25S26Cl
Reference: Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.
Enstatite
Formula: MgSiO3
Reference: Minerals of South Africa
'Fayalite-Forsterite Series'
Reference: Minerals of South Africa
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Minerals of South Africa
Ilmenite
Formula: Fe2+TiO3
Reference: Minerals of South Africa; Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.; Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
'Kimberlite'
Reference: Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
Kyanite
Formula: Al2(SiO4)O
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
Mackinawite
Formula: (Fe,Ni)9S8
Reference: Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
Magnetite var: Titaniferous Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.; Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Minerals of South Africa
Pyrrhotite
Formula: Fe7S8
Reference: Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438.; Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
Rasvumite
Formula: KFe2S3
Reference: Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
Spinel
Formula: MgAl2O4
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.
Spinel var: Pleonaste
Formula: (Mg,Fe)Al2O4
Reference: Field, M., Stiefenhofer, J., Robey, J., and Kurszlaukis, S. (2008): Ore Geology Reviews 34, 33-75.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Group 2 - Sulphides and Sulfosalts
Djerfisherite2.FC.05K6(Fe,Cu,Ni)25S26Cl
Mackinawite2.CC.25(Fe,Ni)9S8
Pentlandite2.BB.15(FexNiy)Σ9S8
Pyrrhotite2.CC.10Fe7S8
Rasvumite2.FB.20KFe2S3
Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
var: Titaniferous Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
Spinel4.BB.05MgAl2O4
var: Pleonaste4.BB.05(Mg,Fe)Al2O4
Group 9 - Silicates
Diopside9.DA.15CaMgSi2O6
var: Chromian Diopside9.DA.15Ca(Mg,Cr)Si2O6
Enstatite9.DA.05MgSiO3
Kyanite9.AF.15Al2(SiO4)O
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
Clinopyroxene Subgroup-
Fayalite-Forsterite Series-
Garnet Group-X3Z2(SiO4)3
Kimberlite-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Mackinawite2.7.2.1(Fe,Ni)9S8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Rasvumite2.9.11.1KFe2S3
Chlor-sulfides
Djerfisherite2.15.2.1K6(Fe,Cu,Ni)25S26Cl
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Ilmenite4.3.5.1Fe2+TiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Kyanite52.2.2c.1Al2(SiO4)O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
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, Rocks, etc.
'Clinopyroxene Subgroup'-
Diopside
var: Chromian Diopside
-Ca(Mg,Cr)Si2O6
'Fayalite-Forsterite Series'-
'Garnet Group'-X3Z2(SiO4)3
'Kimberlite'-
Magnetite
var: Titaniferous Magnetite
-Fe2+(Fe3+,Ti)2O4
Spinel
var: Pleonaste
-(Mg,Fe)Al2O4

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
C DiamondC
OOxygen
O Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
O CorundumAl2O3
O DiopsideCaMgSi2O6
O EnstatiteMgSiO3
O Garnet GroupX3Z2(SiO4)3
O IlmeniteFe2+TiO3
O KyaniteAl2(SiO4)O
O MagnetiteFe2+Fe23+O4
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Spinel (var: Pleonaste)(Mg,Fe)Al2O4
O SpinelMgAl2O4
O Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
MgMagnesium
Mg Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Mg DiopsideCaMgSi2O6
Mg EnstatiteMgSiO3
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Spinel (var: Pleonaste)(Mg,Fe)Al2O4
Mg SpinelMgAl2O4
AlAluminium
Al CorundumAl2O3
Al KyaniteAl2(SiO4)O
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Spinel (var: Pleonaste)(Mg,Fe)Al2O4
Al SpinelMgAl2O4
SiSilicon
Si Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Si DiopsideCaMgSi2O6
Si EnstatiteMgSiO3
Si Garnet GroupX3Z2(SiO4)3
Si KyaniteAl2(SiO4)O
Si PhlogopiteKMg3(AlSi3O10)(OH)2
SSulfur
S DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
S Mackinawite(Fe,Ni)9S8
S Pentlandite(FexNiy)Σ9S8
S PyrrhotiteFe7S8
S RasvumiteKFe2S3
ClChlorine
Cl DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
KPotassium
K DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
K PhlogopiteKMg3(AlSi3O10)(OH)2
K RasvumiteKFe2S3
CaCalcium
Ca Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
Ca DiopsideCaMgSi2O6
TiTitanium
Ti IlmeniteFe2+TiO3
Ti Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
CrChromium
Cr Diopside (var: Chromian Diopside)Ca(Mg,Cr)Si2O6
FeIron
Fe DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
Fe IlmeniteFe2+TiO3
Fe Mackinawite(Fe,Ni)9S8
Fe MagnetiteFe2+Fe23+O4
Fe Pentlandite(FexNiy)Σ9S8
Fe Spinel (var: Pleonaste)(Mg,Fe)Al2O4
Fe PyrrhotiteFe7S8
Fe RasvumiteKFe2S3
Fe Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
NiNickel
Ni DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
Ni Mackinawite(Fe,Ni)9S8
Ni Pentlandite(FexNiy)Σ9S8
CuCopper
Cu DjerfisheriteK6(Fe,Cu,Ni)25S26Cl

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Jurassic - Permian
145 - 298.9 Ma



ID: 3310857

Age: Phanerozoic (145 - 298.9 Ma)

Lithology: Sedimentary (karoo)

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Permian
251.902 - 298.9 Ma



ID: 2228870
Prince Albert Formation of Ecca Group of Karoo Supergroup

Age: Phanerozoic (251.902 - 298.9 Ma)

Stratigraphic Name: Prince Albert Formation

Description: Dark-grey mudrock

Reference: Council for Geoscience. Geologic map of South Africa, 1:1M. National Science Councils of South Africa. [41]

Paleoproterozoic - Archean
1600 - 4000 Ma



ID: 3192219
Archean-Paleoproterozoic volcanic rocks

Age: Precambrian (1600 - 4000 Ma)

Comments: Kapvaal Craton

Lithology: Felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Frick, C. (1973). Intergrowths of orthopyroxene and ilmenite from Frank Smith mine, Near Barkly West, South Africa. Transactions of the Geological Society of South Africa, 76(30, 95-200.,
Clarke, D. B., Pe, G. G., MacKay, R. M., Gill, K. R., O'hara, M. J., & Gard, J. A. (1977). A new potassium-iron-nickel sulphide from a nodule in kimberlite. Earth and Planetary Science Letters, 35(3), 421-428.
Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa, 166 pp.
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.

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