Black Rock Mine, Black Rock, Kalahari manganese field, Northern Cape Province, South Africa
|Latitude & Longitude (WGS84):||27° 7' 59'' South , 22° 49' 59'' East|
|Latitude & Longitude (decimal):||-27.13333,22.83333|
|Other regions containing this locality:||Kalahari Desert, Africa|
|Köppen climate type:||BSh : Hot semi-arid (steppe) climate|
A manganese property owned by Associated Manganese Mines of South Africa, Ltd.
Note: Sturmanite an approved IMA mineral is erroneously reported from this mine, whilst it is said to be the type locality there must have been faulty labelling as it has never been found since with the associated minerals as described in the original paper whereas at least 5 pockets at Wessels mine between 1978 - 1982 have yielded crystals of similar habit. No specimens have ever been recorded from this mine and it was closed many years before. It is widely believed Black Rock is an erroneous locality and Wessels is the true locality. This has been checked against several references from Cairncross et al and von Bezing (Debbie Woolf).
24 valid minerals. 1 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 1 erroneous literature entry.
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
0 - 66 Ma