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Hennops River, Pretoria District (Tshwane District), Gauteng, South Africai
Regional Level Types
Hennops RiverRiver
Pretoria District (Tshwane District)District
GautengProvince
South AfricaCountry

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Key
Latitude & Longitude (WGS84):
25° 49' 44'' South , 27° 58' 23'' East
Latitude & Longitude (decimal):
Locality type:


The site is found at a road cutting on the R511 between Sandton and Hartbeespoort Dam in the Schurveberg mountains, part of the Rhenosterspruit Nature Conservancy.

To quote (Norman and Whitfield) "From the Johannesburg area the best route is on the R511 from Fourways, joining the N4 near Pelindaba. This takes you across the Johanneburg Granite Dome and through almost the entire Transvall supergroup, including very good exposures of the Malmani dolomite in the Hennops River Valley, with its characteristic olifantsklip weathering"

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


1 valid mineral.

Detailed Mineral List:

Quartz
Formula: SiO2
Reference: Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa, pg 236;
Quartz var: Amethyst
Formula: SiO2
Reference: Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa, pg 236;

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2

List of minerals arranged by Dana 8th Edition classification

Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
var: Amethyst-SiO2

List of minerals for each chemical element

OOxygen
O Quartz (var: Amethyst)SiO2
O QuartzSiO2
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si QuartzSiO2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Cairncross, B. & Dixon, R. (1995) Minerals of South Africa, The Geological Society of South Africa, Johannesburg, South Africa, 290 pages, at p.236.
Nick Norman, Gavin Whitfield (2006) Geological Journeys: A Traveller's Guide to South Africa's Rocks and Landforms, page 186.


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