Stellar Diamonds said the drilling and bulk sampling of the 2.5 kilometre long Dyke 1 of its Tongo kimberlite project, in Sierra Leone, which was completed recently, has generated “excellent” results.
Company chief executive Karl Smithson said in a statement emailed to Rough & Polished that with a diamond grade of 121 carats per hundred tonnes (cpht) and diamond value of $185/ct, the calculated in-situ value of the kimberlite was $224 per tonne.
He said sampling of the nearby 1km long Dyke 4 had also yielded a high grade of 106cpht demonstrating further kimberlite resource potential in the immediate vicinity.
Stellar said some 32 holes for 4,048 metres were drilled and kimberlite was intersected in 27 of the holes.
The deepest intersection of kimberlite was recorded at 202 metre vertical depth from surface and the kimberlite remains open at depth and along strike, it said.
The diamond mining and exploration company said independent consultants CAE Mining were now compiling the maiden Tongo resource statement for Dyke 1, which remains on track for completion during this first quarter of 2012.
Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished
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