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Alpha-Gravelotte Mine, Gravelotte, Murchison Range, Limpopo, South Africai
Regional Level Types
Alpha-Gravelotte MineMine
Gravelotte- not defined -
Murchison RangeMountain Range
LimpopoProvince
South AfricaCountry

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Latitude & Longitude (WGS84): 23° 56' 23'' South , 30° 36' 29'' East
Latitude & Longitude (decimal): -23.93972,30.60806
GeoHash:G#: ketzb9bj5
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate


Antimony mine

Regions containing this locality

Transvaal, South Africa

Province (Former) - 838 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Antimony
Formula: Sb
Description: Found within the flat reef where mineralized chloritic talc-carbonate schists have altered to dark serpentinitic assemblage by intrusion of a dolerite dyke, stibnite has been reduced to antimony.
Reference: Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa. 184. Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 33.
Arsenopyrite
Formula: FeAsS
Reference: Minerals of South Africa
Aurostibite
Formula: AuSb2
Reference: Minerals of South Africa
Berthierite
Formula: FeSb2S4
Reference: Minerals of South Africa
'Chlorite Group'
Reference: Minerals of South Africa
Gersdorffite
Formula: NiAsS
Reference: Minerals of South Africa
Gold
Formula: Au
Reference: Minerals of South Africa
Gudmundite
Formula: FeSbS
Reference: Minerals of South Africa
Pyrite
Formula: FeS2
Reference: Minerals of South Africa
Quartz
Formula: SiO2
Reference: Minerals of South Africa
Scheelite
Formula: Ca(WO4)
Reference: Minerals of South Africa
Senarmontite
Formula: Sb2O3
Reference: Minerals of South Africa
'Stibiconite'
Formula: Sb3+Sb5+2O6(OH)
Reference: Minerals of South Africa
Stibnite
Formula: Sb2S3
Description: Found within the flat reef where mineralized chloritic talc-carbonate schists have altered to dark serpentinitic assemblage by intrusion of a dolerite dyke, stibnite has been reduced to antimony.
Reference: Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa. 184. Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 33.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Minerals of South Africa
Ullmannite
Formula: NiSbS
Reference: Minerals of South Africa

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Antimony'1.CA.05Sb
'Gold'1.AA.05Au
Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Aurostibite'2.EB.05aAuSb2
'Berthierite'2.HA.20FeSb2S4
'Gersdorffite'2.EB.25NiAsS
'Gudmundite'2.EB.20FeSbS
'Pyrite'2.EB.05aFeS2
'Stibnite'2.DB.05Sb2S3
'Ullmannite'2.EB.25NiSbS
Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
'Senarmontite'4.CB.50Sb2O3
'Stibiconite'4.DH.20Sb3+Sb5+2O6(OH)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Scheelite'7.GA.05Ca(WO4)
Group 9 - Silicates
'Talc'9.EC.05Mg3Si4O10(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Semi-metals and non-metals
Antimony1.3.1.2Sb
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Aurostibite2.12.1.11AuSb2
Gersdorffite2.12.3.2NiAsS
Gudmundite2.12.4.2FeSbS
Pyrite2.12.1.1FeS2
Ullmannite2.12.3.3NiSbS
Group 3 - SULFOSALTS
ø = 2
Berthierite3.7.9.3FeSb2S4
Group 4 - SIMPLE OXIDES
A2X3
Senarmontite4.3.9.2Sb2O3
Group 44 - ANTIMONATES
A2X2O6(O,OH,F)
'Stibiconite'44.1.1.1Sb3+Sb5+2O6(OH)
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
H StibiconiteSb3+Sb25+O6(OH)
H TalcMg3Si4O10(OH)2
OOxygen
O QuartzSiO2
O ScheeliteCa(WO4)
O SenarmontiteSb2O3
O StibiconiteSb3+Sb25+O6(OH)
O TalcMg3Si4O10(OH)2
MgMagnesium
Mg TalcMg3Si4O10(OH)2
SiSilicon
Si QuartzSiO2
Si TalcMg3Si4O10(OH)2
SSulfur
S ArsenopyriteFeAsS
S BerthieriteFeSb2S4
S GersdorffiteNiAsS
S GudmunditeFeSbS
S PyriteFeS2
S StibniteSb2S3
S UllmanniteNiSbS
CaCalcium
Ca ScheeliteCa(WO4)
FeIron
Fe ArsenopyriteFeAsS
Fe BerthieriteFeSb2S4
Fe GudmunditeFeSbS
Fe PyriteFeS2
NiNickel
Ni GersdorffiteNiAsS
Ni UllmanniteNiSbS
AsArsenic
As ArsenopyriteFeAsS
As GersdorffiteNiAsS
SbAntimony
Sb AntimonySb
Sb AurostibiteAuSb2
Sb BerthieriteFeSb2S4
Sb GudmunditeFeSbS
Sb SenarmontiteSb2O3
Sb StibiconiteSb3+Sb25+O6(OH)
Sb StibniteSb2S3
Sb UllmanniteNiSbS
WTungsten
W ScheeliteCa(WO4)
AuGold
Au AurostibiteAuSb2
Au GoldAu

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

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3309350

Age: Archean (2500 - 3200 Ma)

Lithology: Volcanic-sedimentary

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

Archean
2500 - 4000 Ma



ID: 2233201
Leydsdorp Formation of Gravelotte Group

Age: Archean (2500 - 4000 Ma)

Stratigraphic Name: Leydsdorp Formation

Description: Mafic metalavas (tholeiitic) with interbedded banded iron-formation, quartz-chlorite schist and quartz porphyry

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

Mesoarchean - Paleoarchean
2800 - 3600 Ma



ID: 3189821
Archean intrusive rocks

Age: Archean (2800 - 3600 Ma)

Lithology: Intrusive igneous 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)
Abbot, J.E., Van Vuuren. C.J.J. and Viljoen, M.J., (1986).The Alpha Gravelotte antimony ore body, Murchison greenstone belt. In: Anhaeusser, C.R. and Maske, S., (Eds.). Mineral Deposits of Southern Africa, Vols I & II, Geological Society of South Africa, Johannesburg, 321 332.
Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa. 184.
Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 33.
Jaguin, J., Boulvais, P., Poujol, M., Bosse, V., Paquette, J. L., & Vilbert, D. (2013). Albitization in the antimony line, Murchison Greenstone Belt (Kaapvaal Craton): A geochemical and geochronological investigation. Lithos, 168, 124-143.


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