Overview
| Status | Care and Maintenance |
| Mine Type | Underground |
| Commodities |
|
| Processing |
- Gravity separation
- Agitated tank leaching
- Carbon in leach (CIL)
- Carbon in pulp (CIP)
- Elution
- Merrill–Crowe
|
| Mine Life | 14 years (as of Jan 1, 2016) |
The most recent production data were publicly available for 2016 (as of January 16, 2020).
Metallon has been forced to put its mines on care and maintenance because of the unsustainable costs of running them without proper compensation for its proceeds from the Government of Zimbabwe. Where payments were received, they would only amounted to a third of the total owed. Between 2016 and 2019, Metallon lost US$82m and Metallon is claiming for US$132m for the lack of profit and procurement, including interest. |
Source:
| Company | Interest | Ownership |
|
Metallon Corporation Ltd.
|
100 %
|
Indirect
|
|
King's Daughter Mining Company Ltd.
(operator)
|
100 %
|
Direct
|
Redwing Mine is owned and operated by King's Daughter Mining Company Limited.
Summary:
At Redwing Mine two main orebodies, the felsite and quartz, are where mining has taken place. The felsite orebodies range in thickness from 2 to 15 metres (averaging 5 metres) and are shallow dipping. Gold mineralisation is generally disseminated and grades are approximately 2 to 3g/t. The quartz orebodies are generally narrow (<2.5 metres) and steeply dipping and generally average 6 to 7g/t, although locally have very high grades (>50g/t). Gold mineralisation is associated with sulphide mineralisation comprising pyrite, galena, chalcopyrite, minor arsenopyrite and sporadic native gold. Silver occurs with the gold and represents some 50% of gold content.
Summary:
Redwing Mine is a combined underground and sand/slime retreatment operation, with one processing plant dedicated to underground operations and another to surface sand operations.
The average mined grade is 5.5g/t Au.
Processing Technologies
- Gravity separation
- Agitated tank leaching
- Carbon in leach (CIL)
- Carbon in pulp (CIP)
- Elution
- Merrill–Crowe
Source:
Summary:
Redwing Mine is a combined underground and sand/slime retreatment operation, with one processing plant dedicated to underground operations and another to surface sand operations. The former uses a combination of conventional milling, gravity concentration, Merril Crowe and carbon-in pulp to process the ore. The latter uses a combination of conventional milling, leaching, carbon-in-leach and elution circuits.
Production:
| Commodity | Units | 2016 | 2015 |
|
Gold
|
oz
| 10,106 | 814 |
Reserves at June 30, 2016:
| Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
In-Situ (UG)
|
40 kt
|
Gold
|
3.43 g/t
|
4 koz
|
|
Probable
|
In-Situ (UG)
|
167 kt
|
Gold
|
3.48 g/t
|
19 koz
|
|
Proven & Probable
|
In-Situ (UG)
|
207 kt
|
Gold
|
3.47 g/t
|
23 koz
|
|
Measured
|
In-Situ (UG)
|
1,402 kt
|
Gold
|
2.73 g/t
|
123 koz
|
|
Indicated
|
In-Situ (OP)
|
9,924 kt
|
Gold
|
0.33 g/t
|
105 koz
|
|
Indicated
|
In-Situ (UG)
|
7,946 kt
|
Gold
|
3.99 g/t
|
1,018 koz
|
|
Indicated
|
Total
|
17,870 kt
|
Gold
|
1.96 g/t
|
1,123 koz
|
|
Measured & Indicated
|
In-Situ (OP)
|
9,924 kt
|
Gold
|
0.33 g/t
|
105 koz
|
|
Measured & Indicated
|
In-Situ (UG)
|
9,347 kt
|
Gold
|
3.8 g/t
|
1,141 koz
|
|
Measured & Indicated
|
Total
|
19,271 kt
|
Gold
|
2.01 g/t
|
1,246 koz
|
|
Total Resource
|
In-Situ (OP)
|
9,924 kt
|
Gold
|
0.33 g/t
|
105 koz
|
|
Total Resource
|
In-Situ (UG)
|
23,828 kt
|
Gold
|
3.08 g/t
|
2,363 koz
|
|
Total Resource
|
Total
|
33,752 kt
|
Gold
|
2.27 g/t
|
2,468 koz
|
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