RE:RE:RE:RE:RE:RE:RE:ZenKnats excited about their Valuable Graphene after annual the_Chief wrote: ThinkPlease wrote: And you still didn't answer the question. Why is that?
Going back to the shareholder post about the meeting, the only mention of the method to be used for bulk sample recovery is drilling. Let's go with that.
The largest standard core size is PQ. The length of PQ core that contains one cubic metre of rock is 17.6 metres. Assuming 2.7 for the density, then 17.6/2.7 = 6.53 m PQ core per tonne of material. To obtain 990 tonnes in this way would require 6462 metres of drilling. (all numbers rounded for presentation)
In this calculation, I have totally ignored getting through overburden, but you pay for that too. PQ drilling is more expensive per metre and slower than drilling NQ or even HQ. Winter road access? Eek.
Pick a cost per metre for drilling, whatever, we're into the seven figure costs right there.
Then you have to haul it, find a custom operator to crush it and float it to concentrate, purify it, turn it into graphene....
I look forward to seeing their thoughts on this bulk sample program.
Not sure I agree, check my math
PQ is 4.8 inch external diameter, inside or core diameter is 3.34 inches. If one were to stand 1 meter core lengths up alongside the walls of a 1meter cube you would have 12 cores x 12 cores (12x3.34= ~1m ) disregarding the space between circular cores.
12x12=144 cores 1 meter long to fill a cubic meter or 2.7 tonnes. That means 144 meters of core needed for 2.7 tonnes.
900/2.7=333 holes 144 meters long
So whose math is incorrect? Could be mine...but don't think so? Comment?
Now if this was the end of it, then its bad enough, but it gets worse. Those 333 holes will cost about $20,000,000 but again if that was the end its bad enough, but, there is only one section of Albany that is 4% C thats needed to get 40 tonnes out of a 900 tonne bulk..... but it gets worse. Each core loses 50meters in overburden so...now the holes have to be 200m deep to get 900m of 4% to get 36 tonnes.... but it gets worse....to get 4% consistently all 333 holes would have to be in a 25x50foot area of Albany...... but, it gets worse........the overburden IS considered part of the bulk so you have 144m-50m=94m of 4% which means you only have 27 tonnes Graphite not 40
Maybe you can Tunnel as Choo Choo told the AGM, ahhhh but alas if people go into the tunnel you need engineering that is part of mining and you don't have a mining permit
The only thing that works is a 40 inch Auger, it can be done just not sure it can cut the Albany Host Rock (granite) Cost?? = $$$$$$$$$$$$$$$$$$$