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Jenkinskop, Richtersveld, Namakwa District (Namaqualand), Northern Cape, South Africai
Regional Level Types
Jenkinskop- not defined -
Richtersveld- not defined -
Namakwa District (Namaqualand)District
Northern CapeProvince
South AfricaCountry

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Latitude & Longitude (WGS84): 28° 41' South , 17° 16' East
Latitude & Longitude (decimal): -28.68333,17.26667
GeoHash:G#: k6ukbfm5q
Köppen climate type:BWk : Cold desert climate


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Description: White fibrous crystals over 20cm.
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 9 - Silicates
'Tremolite'9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2

List of minerals for each chemical element

HHydrogen
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
OOxygen
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
MgMagnesium
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
SiSilicon
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
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

Statherian - Orosirian
1600 - 2050 Ma



ID: 2230114
Vioolsdrif Suite

Age: Paleoproterozoic (1600 - 2050 Ma)

Stratigraphic Name: Vioolsdrif Suite

Description: Granodiorite, adamellite, leucogranite, tonalite, diorite, minor basic to ultrabasic rocks

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

Statherian - Orosirian
1600 - 2050 Ma



ID: 3306328

Age: Paleoproterozoic (1600 - 2050 Ma)

Lithology: Volcanic-sedimentary

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

Statherian - Paleoproterozoic
1600 - 2500 Ma



ID: 3184890
Paleoproterozoic intrusive rocks

Age: Proterozoic (1600 - 2500 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)
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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