Mineral Resources and Reserves Description

The rocks from the Marginal Zone in the base in the succession consist mainly of pyroxenites with some dunites and harzburgites. Above the Marginal Zone, the Lower Zone comprises mainly pyroxenites, harzburgites and dunite, and is present only in the

northern portion of the Eastern Lobe, and only as far south as Steelpoort. The appearance of chromitite layers marks the get started of the Critical Zone, economically probably the most significant zone.

The layers are grouped into 3 sets termed the Lower, Middle and Upper groups. The sixth chromitite seam within the Lower Group (LG6), is an essential source of chromite ore and will be the orebody being mined at Dwarsrivier Mine. Inside the Eastern Lobe, within the vicinity of Dwarsrivier, the strike is practically northsouth, having a dip of roughly ten degrees towards the west. Average thickness from the LG6 seam is about 1,86 metres within the Dwarsrivier location. Pipe-like dunite intrusions are evident inside the area, too as dolerite dykes that on average strike northeast-south-west. No significant grade variation is evident, particularly not vertically in the ore seam. Small, insignificant regional variations do, on the other hand, exist. rock stone crusher

Mineral Resources and Reserves – Information and facts was obtained from boreholes with 300 to 150-metre grid spacing. Resources had been determined having a decreasing level of confidence.

• Measured Resource (150 metres drill grid spacing).

• Indicated Resource (300 metres drill grid spacing).

• Inferred Resource (drill grid spacing higher than 300 metres).

All achievable Resources down to a mineable depth of 350 metres below ground level have been regarded as. Vertical diamond drill holes are employed for geological and grade modelling, except exactly where details is necessary to clarify large-scale fault planes. The Mineral Resource at Dwarsrivier Mine is based on a total of 232 diamond drill holes which have been made use of for grade estimation and orebody modelling purposes. The drill core is NQ size and is geologically and geotechnically logged. The collar position of the drill holes is surveyed, but no down hole surveys are completed, plus the holes are assumed to have minimal deflection.

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