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Cobra 8 mine, Chiredzi mining district (Hartley mining district), Masvingo, Zimbabwei
Regional Level Types
Cobra 8 mineMine
Chiredzi mining district (Hartley mining district)Mining District
MasvingoProvince
ZimbabweCountry

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Key
Latitude & Longitude (WGS84):
21° 2' 36'' South , 32° 10' 14'' East
Latitude & Longitude (decimal):
Locality type:


An abandoned copper tungsten mine. Previous prospecting and mining work included five shafts, numerous trenches, and pits on the strike-length of the occurrence. The claims were first registered in December 1976. During 1977-82, 36.18t of tungsten concentrate were produced.

Geology: The occurrence is developed in a fracture –zone, 2.0-2.8m wide, in syenite of the Mutandahwe Complex, and in places along the walls of a mafic dyke intrusive into the syenite. Near the reef, the mafic dyke is altered to biotite–rich rock. The reef showed pinching and swelling along strike and down dip and had a pay-strike ranging from 30 to 50m. Sulphide concentrates contained up to 3 g/t Au and 30 g/t Ag.

Size and orientation of deposit: 0.5 to 2.0m wide; extends for 650m; strike 050; sub-vertical dip.

Regions containing this locality

African PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


13 valid minerals.

Detailed Mineral List:

Bismuthinite
Formula: Bi2S3
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Chalcocite
Formula: Cu2S
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Chalcopyrite
Formula: CuFeS2
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Cobaltite
Formula: CoAsS
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Fluorite
Formula: CaF2
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Galena
Formula: PbS
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Wolfgang Hampel, site visit June 2016
Marcasite
Formula: FeS2
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Pyrite
Formula: FeS2
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Pyrrhotite
Formula: Fe7S8
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Quartz
Formula: SiO2
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Scheelite
Formula: Ca(WO4)
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
Sphalerite
Formula: ZnS
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: WILSON, J.F., CHOE, M.G. & CHOE, G.H. (1998): The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts.- Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bismuthinite2.DB.05Bi2S3
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Cobaltite2.EB.25CoAsS
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Scheelite7.GA.05Ca(WO4)
Unclassified Minerals, Rocks, etc.
'Wolframite'-(Fe2+)WO4to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Cobaltite2.12.3.1CoAsS
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O ScheeliteCa(WO4)
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
O QuartzSiO2
O MalachiteCu2(CO3)(OH)2
FFluorine
F FluoriteCaF2
SiSilicon
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
S MarcasiteFeS2
S GalenaPbS
S SphaleriteZnS
S PyrrhotiteFe7S8
S CobaltiteCoAsS
S BismuthiniteBi2S3
S ChalcociteCu2S
CaCalcium
Ca ScheeliteCa(WO4)
Ca FluoriteCaF2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe MarcasiteFeS2
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
Fe PyrrhotiteFe7S8
CoCobalt
Co CobaltiteCoAsS
CuCopper
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As CobaltiteCoAsS
WTungsten
W ScheeliteCa(WO4)
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
PbLead
Pb GalenaPbS
BiBismuth
Bi BismuthiniteBi2S3

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Wilson, J.F., Choe, M.G., Choe, G.H. (1998) The Geology of the Country around Mutandahwe, Chiredzi and Chipinge Districts. Zimbabwe Geological Survey, Short Report n° 50, 44 pages, Harare.


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