STAR - ORION SOUTH DIAMOND PROJECT COMMENCEMENT OF THE


    volumes of kimberlite by excavating lar hole of 3.2 by 1.5 metresa rectangu . Each ten metres of advance down hole, within the kimberlite, will yield some 100 tonnes of sample. The Trench Cutter Sampling Rig’s cutter head has been designed to excavate kimberlite fragments up to 80 millimetres in diameter, which are then pumped in a


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