Devil's Reef, Pigg's Peak, Hhohho Region, Eswatinii
| Regional Level Types | |
|---|---|
| Devil's Reef | Reef |
| Pigg's Peak | Village |
| Hhohho Region | Region |
| Eswatini | Country |
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Latitude & Longitude (WGS84):
25° 56' South , 31° 10' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Bulembu | 2,260 (2013) | 5.0km |
| Piggs Peak | 5,750 (2017) | 8.6km |
| Barberton | 67,927 (2012) | 19.7km |
| Darkton | 1,281 (2012) | 35.9km |
| Mbabane | 76,218 (2012) | 42.7km |
One of the most spectacular gold occurrences of the supergene type was the Devils Reef gold deposit in neighbouring Swaziland. The occurrence was notable on two counts. Firstly, the ore body although small in size, was exceptionally rich. During 1890-1891, 87,63 kg gold was produced from only 69 tonnes of ore, an average grade of 1,27kg/ton (>0,1% gold). Secondly, Devils Reef is the only deposit documented in the Barberton Mountain Land in which gold occurs in pockets rich in manganese oxides and hydroxides together with large drusy quartz crystals. The quartz crystals reach several centimetres in length and contain a variety of colourful inclusions such as specular hematite, limonite and goethite and red phantom terminations defined by finely disseminated red hematite. The wad also contained rich pockets of gold and many of the surface excavations were located in areas where wad is well developed.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Goethite Formula: α-Fe3+O(OH) Reference: Jones, D.H., (1962). Report on the Devil's Reef gold mine area, lapsed Mineral Concession No. 32B, Pigg's Peak District. Unpublished report, Geological Survey of Swaziland, Stencil No. 442. |
| ⓘ Gold Formula: Au Reference: Jones, D.H., (1962). Report on the Devil's Reef gold mine area, lapsed Mineral Concession No. 32B, Pigg's Peak District. Unpublished report, Geological Survey of Swaziland, Stencil No. 442. |
| ⓘ Hematite Formula: Fe2O3 Reference: Jones, D.H., (1962). Report on the Devil's Reef gold mine area, lapsed Mineral Concession No. 32B, Pigg's Peak District. Unpublished report, Geological Survey of Swaziland, Stencil No. 442.; Jones, D.H., (1962). Report on the Devil's Reef gold mine area, lapsed Mineral Concession No. 32B, Pigg's Peak District. Unpublished report, Geological Survey of Swaziland, Stencil No. 442. |
| ⓘ Quartz Formula: SiO2 Reference: Jones, D.H., (1962). Report on the Devil's Reef gold mine area, lapsed Mineral Concession No. 32B, Pigg's Peak District. Unpublished report, Geological Survey of Swaziland, Stencil No. 442. |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | α-Fe3+O(OH) |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
| Au | Gold | |
| Au | ⓘ Gold | Au |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Jones, D.H., (1962). Report on the Devil's Reef gold mine area, lapsed Mineral Concession No. 32B, Pigg's Peak District. Unpublished report, Geological Survey of Swaziland, Stencil No. 442.
Other Regions, Features and Areas containing this locality
Somali PlateTectonic Plate
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Devil's Reef, Pigg's Peak, Hhohho Region, Eswatini