Overview
| Stage | Production |
| Mine Type | Underground |
| Commodities |
- PGM
- Gold
- Platinum
- Palladium
- Rhodium
- Nickel
- Copper
- Iridium
- Ruthenium
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2042 |
Unki – one of the world’s largest PGM deposits outside of South Africa, on the Great Dyke in Zimbabwe.
There are currently no major technical studies underway at Unki. However, workstreams including drilling programmes will commence in 2023 to explore the economic potential of open-cast mining areas. |
Source:
p. 97,270,271
Anglo American Platinum Ltd. wholly owns and operates the Unki mine.
Anglo American plc. held through an effective 79.2% interest in Anglo American Platinum Limited.
Contractors
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Summary:
Unki Mine is located in the Selukwe subchamber of the Great Dyke in Zimbabwe. In transverse section, the subchamber is synclinal in shape, with essentially the same lithological succession being exposed on both sides of the longitudinal axis. The general dip decreases from outcrops to the central area varying from 14° to 0°. Within the Special Mining Lease, the intrusion strikes north north-east/south south-west and extends about 26km.
The Great Dyke in Zimbabwe occurs as a 2.5 billion-year-old mafic to predominantly ultramafic layered intrusion, is about 550km long and between 3km and 11km wide. The Great Dyke is trending in a north north-easterly direction cutting across the Archaean rocks of the Zimbabwe Craton, which are largely granite and greenstone belt rocks. Unki Mine is located in the Selukwe (Shurugwi) subchamber of the Great Dyke. The subchamber is 90km long, and up to about 7km wide. The shape of the Selukwe (Shurugwi) subchamber has to some extent been controlled by the proximity of the Selukwe greenstone belt, in that it has been deflected and constricted in places.
The Great Dyke has been preserved within a narrow graben structure and is synclinal in shape, with essentially the same mafic and ultramafic lithological successions being exposed on both sides of the longitudinal axis. The dyke comprises an upper mafic unit of alternating sequences of pyroxenite and duniteharzburgites successions and a lower ultramafic zone of dunite. The layers are dipping and ........
Summary:
Unki Mine is a mechanised, trackless, bord-and-pillar underground operation. Minimal development is required to prepare for mining. Development is often on-reef and comprises roadways for ore transport and travelling ways for mine personnel. Excavation of roadways is combined with ore production. Mined-out stopes serve as transport routes. Mobile mechanised mining equipment is used at Unki Mine. A twin-decline shaft system provides access to underground workings for employees and material, as well as ore conveyance. Both shafts are now 2,822m from the portal on surface. Currently there are 17 established mining sections. The equipped sections have strikes belts for transferring ore directly to the main incline shaft conveyor.
Source:
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Flow Sheet:
Summary:
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Reserves at December 31, 2022:
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
28.2 Mt
|
4E (Pt, Pd, Rh, Au)
|
3.24 g/t
|
2.9 M oz
|
|
Probable
|
23 Mt
|
4E (Pt, Pd, Rh, Au)
|
3.35 g/t
|
2.5 M oz
|
|
Proven & Probable
|
51.2 Mt
|
4E (Pt, Pd, Rh, Au)
|
3.29 g/t
|
5.4 M oz
|
|
Measured
|
6.1 Mt
|
4E (Pt, Pd, Rh, Au)
|
4.12 g/t
|
0.8 M oz
|
|
Indicated
|
114.6 Mt
|
4E (Pt, Pd, Rh, Au)
|
4.33 g/t
|
16 M oz
|
|
Measured & Indicated
|
120.8 Mt
|
4E (Pt, Pd, Rh, Au)
|
4.32 g/t
|
16.8 M oz
|
|
Inferred
|
31.8 Mt
|
4E (Pt, Pd, Rh, Au)
|
4.04 g/t
|
4.1 M oz
|
|
Total Resource
|
152.5 Mt
|
4E (Pt, Pd, Rh, Au)
|
4.26 g/t
|
20.9 M oz
|
Heavy Mobile Equipment as of July 23, 2023:
| HME Type | Model | Quantity |
|
Drill
|
.......................
|
.......................
|
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Corporate Filings & Presentations:
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