|Latitude & Longitude (WGS84):||28° 23' 17'' South , 23° 27' 23'' East|
|Latitude & Longitude (decimal):||-28.38806,23.45639|
|Owned/operated by:||Petra Diamonds Ltd (100%)|
|Köppen climate type:||BSk : Cold semi-arid (steppe) climate|
|Other/historical names associated with this locality:||Asbestos hills|
Finsch is one of the world’s significant diamond mines and South Africa’s second largest diamond operation by production (after De Beers’ Venetia mine).
The pipe was discovered in 1960 by two prospectors, Fincham and Schwabel, for whom it was named, while prospecting for asbestos in the Asbestos hills, about 150 km west of Kimberley. They established Finsch Diamonds in 1960, but De Beers gained a controlling interest in the deposit in 1963.
The mine was officially opened in 1967. Ore extraction was initially from the open pit. Sinking of the main shaft to access the mine from underground started in 1978. Two vertical shaft complexes, tunnels and ground handling infrastructure were prepared for the continuing exploitation of the pipe with the use of highly mechanised mining methods. In 2008 the treatment plant was upgraded at a cost of approximately US$100 million. On 14 September 2011, Petra Diamonds purchased Finsch as a fully-staffed, operating mine from De Beers.
Finsch is known for highly commercial goods of +5 carats and is rich in gem quality smaller diamonds. Large, special diamonds are also a feature of the orebody, with a number of +50 carat stones recovered at the mine annually, and the mine also produces very rare fancy yellow diamonds.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
6 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
|Pleistocene - Paleogene|
0.0117 - 66 Ma
|Rhyacian - Siderian|
2050 - 2500 Ma
|Asbestos Hills Subgroup of Ghaap Group of Transvaal Supergroup|
2300 - 2500 Ma
|Paleoproterozoic sedimentary rocks|
Age: Siderian (2300 - 2500 Ma)
Lithology: Sedimentary 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.