Gahcho Kué Diamond Mine largest pipe is The 5034 pipe has an irregular shape with surface dimensions roughly 120 by 180 metres. The 5034 is one of 4 pipes and is the largest. Gahcho Ku has a 12-year life-of-mine. The mine began the ramp-up of production in early August 2016. The project cost an estimated $1-billion to develop. Measured and indicated resources as at December 31, 2015, were estimated at 2.3-million tonnes, grading 137.1 cpht. Inferred resources were estimated at 12.9-million tonnes, grading 140.6 cpht.
If you compare sequioa at 300m wide x 1000m long (300,000sqm in size) To 5034 pipe at 120m x 180m (21600sqm). Sequioa pipe is 13.88 times larger in size.
with 20 CPHT to 70 CPHT at sequoia, we may not have the grade for a standalone mine but we will have lots of diamonds in there economic enough to mine as long as processing is done elsewhere. This will have a huge price tag on it, especially is the type IIa continues and the clear white continues and if the distribution curve is as accurate as buddy indicates. Plus is Arbutus /finnaly are economically viable to sell as ore to exiting processing plant. We will be sitting pretty.