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Assegai Farm, Piet Retief (eMkhondo), Gert Sibande District, Mpumalanga, South Africa i
Regional Level Types
Assegai FarmFarm
Piet Retief (eMkhondo)- not defined -
Gert Sibande DistrictDistrict
MpumalangaProvince
South Africa Country

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Latitude & Longitude (WGS84):
27° 1' South , 30° 38' East
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Piet Retief84,349 (2012)17.8km
Driefontein28,127 (2018)18.2km


143 HT

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


3 valid minerals.

Detailed Mineral List:

Chrysoberyl
Formula: BeAl2O4
Reference: Minerals of South Africa
Quartz
Formula: SiO2
Reference: Minerals of South Africa
Quartz var: Rose Quartz
Formula: SiO2
Reference: Minerals of South Africa
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Description: Fibrous bundles of tan coloured crystals up to 23cm have been found on this farm.
Reference: Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa. 249. Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 28

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chrysoberyl4.BA.05BeAl2O4
Quartz4.DA.05SiO2
var: Rose Quartz4.DA.05SiO2
Group 9 - Silicates
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Chrysoberyl7.2.9.1BeAl2O4
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
var: Rose Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
BeBeryllium
Be ChrysoberylBeAl2O4
OOxygen
O ChrysoberylBeAl2O4
O Quartz (var: Rose Quartz)SiO2
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O QuartzSiO2
MgMagnesium
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al ChrysoberylBeAl2O4
SiSilicon
Si Quartz (var: Rose Quartz)SiO2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si QuartzSiO2
CaCalcium
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2

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
2500 - 2800 Ma



ID: 3191511
Archean intrusive rocks

Age: Neoarchean (2500 - 2800 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]

Archean
2500 - 4000 Ma



ID: 2228071

Age: Archean (2500 - 4000 Ma)

Description: Potassic granite, gneiss

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

Mesoarchean - Paleoarchean
2800 - 3600 Ma



ID: 3307890

Age: Archean (2800 - 3600 Ma)

Lithology: Plutonic and metamorphic

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

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)
Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa. 249.
Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa. 28


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