Overview
Status | Inactive / Suspended |
Mine Type | Underground |
Commodities |
|
Mining Method |
- Sub-level stoping
- Open stoping
|
Processing |
|
The Lily and Barbrook mines have been the subject of a dispute after the operations were placed under business rescue after the Lily mine collapsed in February 2016, killing three mineworkers who were trapped in a container underground. |
Summary:
Gold mineralization associated with shearing in these zones is primarily BIF-hosted and has been mined to a relatively limited extent in the past from steeply plunging ore shoots. Secondary mineralization also occurs in greenschist adjacent to the BIFs. Shearing is primarily concentrated along two parallel faults of regional extent, known colloquially as the Barbrook and Zwartkoppie Lines.
The ore bodies along the Barbrook Line are aligned along a succession of BIF/chert and meta volcanic lithologies. On the Zwartkoppie Line, a series of tight folds with sub-vertical fold axes form the foci of mineralization within intercalated schist, chert and BIF host rocks.
Barbrook has a well-established surface infrastructure (plant, workshops, laboratory, tailings dam, etc.), extensive underground development (>50 km) and readily accessible areas for mining. No ore extraction and very little exploration have been undertaken to date below 10 Level. Access to the main underground sections is via two equipped adits, respectively on 7 and 10 Levels, which are separated by 150 vertical meters.
Mining Methods
- Sub-level stoping
- Open stoping
Summary:
Currently mining at Barbrook using an open stope, sub-level benching method at around 6000 tons of ore per month at a grade of around 6-8g/t Au. Barbrook dispensed with the roaster but utilises other parts of the original plant.
Source:
Summary:
The Taylors (Barbrook) parallel circuit of the (“CMC”) was commissioned and initial production has commenced.
Production (stoping) operations at the Lily Mine commenced during the quarter and tonnage build-up continues to increase according to plan. Small scale initial production for Barbrook Stage 1 also commenced with ore from the Taylors Project, where ore is currently being sourced from a surface stockpile and treated through the CMC flotation circuit. Regional exploration programs are on-going, targeting additional mineral resources.
The Taylors Project (Barbrook Stage 1) processing circuit in the CMC was completed and commissioned during the quarter. This included work on the milling and flotation sections to enable production operations to commence, although further work is still required on the crushing and concentrate drying sections. Small tonnages of surface stockpiled material were processed in March to provide the first batch of concentrates, which wa ........

Recoveries & Grades:
Commodity | Parameter | 2014 |
Gold
|
Recovery Rate, %
| ......  |
Gold
|
Head Grade, g/t
| 2.62 |
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Production:
Commodity | Units | 2014 |
Gold
|
oz
| 6,005 |
Operational Metrics:
Metrics | 2014 |
Tonnes milled
| 118,351 t |
Reserves at December 31, 2014:
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
0.18 Mt
|
Gold
|
3.8 g/t
|
22,800 oz
|
Probable
|
0.64 Mt
|
Gold
|
4.17 g/t
|
85,500 oz
|
Proven & Probable
|
0.82 Mt
|
Gold
|
4.1 g/t
|
108,300
|
Measured
|
3.38 Mt
|
Gold
|
3.2 g/t
|
348,200 oz
|
Indicated
|
2.91 Mt
|
Gold
|
4.44 g/t
|
415,400 oz
|
Inferred
|
8.41 Mt
|
Gold
|
4.79 g/t
|
1,295,100 oz
|
Commodity Production Costs:
| Commodity | Units | 2014 |
Cash costs
|
Gold
|
USD
|
1,252 / oz
|
Financials:
| Units | 2014 |
Capital expenditures
|
M USD
|
1.91
|
Gross profit
|
M USD
|
0.31
|
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Corporate Filings & Presentations:
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Aerial view:
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