Through successive diamond drill hole programs and geophysical surveying, the Star Kimberlite has been drill-delineated to cover a surface area of 352 hectares; making it one of the largest diamondiferous kimberlites discovered to date in the world. At its deepest known point, the Star Kimberlite extends to a depth of 699 metres BGL (STR-05-003C) which makes it greater than 600 metres in vertical extent.
The depth extent of the feeder remains open-ended, with vertical kimberlite intersections tapering off laterally to thicknesses between 40 and 20 metres in northerly, easterly and southerly directions (1 km, 1.5 km and 1 km from the eruptive centre, respectively).
To date, all the major kimberlite phases of the Star Kimberlite have been found to include both microdiamonds and macrodiamonds. Details of the underground bulk sampling and LDD mini- bulk sampling programs show that there is a range of diamond sizes and stone quality recovered from every facies of the Star Kimberlite.
P&E Mining Consultants Inc. NI 43-101 Technical Report No 159 Shore Gold Inc. - Star Diamond Project Resource Estimate Update
Page 38 of 109