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Leeuwenkloof Mine, Leeuwenkloof Farm, Brits (Brits District), Bojanala Platinum District, North West, South Africai
Regional Level Types
Leeuwenkloof MineMine
Leeuwenkloof FarmFarm
Brits (Brits District)- not defined -
Bojanala Platinum DistrictDistrict
North WestProvince
South AfricaCountry

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Key
Latitude & Longitude (WGS84):
25° 50' 12'' South , 27° 49' 32'' East
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Diepsloot350,000 (2014)21.5km
Muldersdriseloop1,500 (2012)22.3km
Brits122,497 (2012)22.9km
Krugersdorp378,821 (2012)28.1km
Ga-Rankuwa68,767 (2012)29.7km


Leeuwenkloof lead mine is situated approximately 30 km west of Pretoria and a few kilometres west of Pelindaba. It is an old, abandoned lead mine that operated on the farm Leeuwenkloof 97 (now 480 JQ) which today is the site of the Leeuwenkloof Environmental Facility.

The main ore mineral exploited at Leeuwenkloof was galena that occurred in quartz veins that cross-cut dolomite of the Eccles Formation, Malmani Subgroup of the Transvaal Supergroup. As with many of the lead deposits formed in the Malmani dolomite, weathering and oxidation produced a suite of secondary minerals that contain not only lead, but also zinc and copper, and Leeuwenkloof is a good example of this type of deposit. It was relatively small, with sporadic sulphide mineralization and did not yield a huge amount of ore but Willemse et al. (1944) record that 1,272 tons of lead ore, averaging 75% Pb was mined from 1907-1908 and again during the period 1914-1925 when production ceased (Cairncross, 2016).

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Transvaal, South AfricaProvince (Former)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: Minerals of South Africa
Cerussite
Formula: PbCO3
Reference: Personally collected on site August 2016
Galena
Formula: PbS
Reference: Personally collected on site August 2016
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Minerals of South Africa
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Minerals of South Africa
Minium
Formula: Pb3O4
Reference: Minerals of South Africa
Plattnerite
Formula: PbO2
Reference: Minerals of South Africa
Quartz
Formula: SiO2
Reference: Personally collected on site August 2016
Wulfenite
Formula: Pb(MoO4)
Reference: Windisch, W. (2014) An introduction to micromounting.; Minerals of South Africa.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Group 4 - Oxides and Hydroxides
Minium4.BD.05Pb3O4
Plattnerite4.DB.05PbO2
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Group 4 - SIMPLE OXIDES
AX2
Plattnerite4.4.1.6PbO2
Group 7 - MULTIPLE OXIDES
AB2X4
Minium7.2.8.1Pb3O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H HemimorphiteZn4Si2O7(OH)2 · H2O
H MalachiteCu2(CO3)(OH)2
CCarbon
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C MalachiteCu2(CO3)(OH)2
C CerussitePbCO3
OOxygen
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O HemimorphiteZn4Si2O7(OH)2 · H2O
O MalachiteCu2(CO3)(OH)2
O MiniumPb3O4
O PlattneritePbO2
O WulfenitePb(MoO4)
O CerussitePbCO3
O QuartzSiO2
SiSilicon
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si QuartzSiO2
SSulfur
S GalenaPbS
CuCopper
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
MoMolybdenum
Mo WulfenitePb(MoO4)
PbLead
Pb MiniumPb3O4
Pb PlattneritePbO2
Pb WulfenitePb(MoO4)
Pb CerussitePbCO3
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Willemse, J., Schwellnus, C.M., Brandt, J.W., Russell, H.D. and van Rooyen, D.P. (1944) Lead deposits in the Union of South Africa and South West Africa, with some notes on associated ores. Memoir 39, Geological Survey of South Africa, Pretoria, 52-55.
Cairncross, B. (2016) Hemimorphite from Leeuwenkloof lead mine. South African Gems & Minerals, November 2016, 31-34.

External Links

http://www.fosagams.co.za/content/introduction-micromounting-wolf-windisch [Windisch, W. (2014) An introduction to micromounting. - Photo of Wulfenite from Leeuwenkloof]


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