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Birthday Mine, Giyani Greenstone Belt, Greater Giyani Local Municipality, Mopani District Municipality, Limpopo, South Africai
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Latitude & Longitude (WGS84):
23° 19' 14'' South , 30° 45' 48'' East
Latitude & Longitude (decimal):
Type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Giyani | 37,024 (2012) | 5.0km |
| Thohoyandou | 44,046 (2012) | 50.5km |
At the Birthday mine, free milling gold occurs in syntectonic quartz veins and in enclosing hornblende-biotite-calcite schists within a ductile shear zone that strikes N75”E and dips at 35” to the northwest. Mineral lineations on the shear plane are generally down dip. The shear zone is developed in medium-grained massive amphibolite consisting mainly of hornblende and plagioclase (An 25) with little or no quartz. The same plagioclase composition in both the altered and sheared amphibolite, and in the massive unaltered amphibolite indicates that shearing occurred under P-T conditions very similar to those reflected by the wall rock (van Reenen et al, 1994).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Regions, Features and Areas containing this locality
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