Developing Bellechasse-­Timmins Gold Deposit

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Message: Final Grades...Larry and I went over this some time back...
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Sep 05, 2010 01:00PM
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Sep 05, 2010 01:16PM
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Sep 06, 2010 10:31AM
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Sep 06, 2010 11:09PM

"He does not like the fact that we say the grade is not what he believes it to be. At the end of the day he is a scientist and he wants to prove EXACTLY what the grade is. The bulk sample gave us a grade of 3 but if you look at where the bulk sample was taken from it includes a lot of area that is obviously not mineralized. I'd say at least half."

From Larry Hoover's post on June 29th... a MUST read regarding how the bulk sampling was done in 2009-2010,

"Tilsley is almost anal about not influencing the outcome of a sampling program in any way. Yes, he picked where the trenches would be placed, but a lot of that was determined by the site characteristics. You'd have to walk the ground to know what that really amounts to, but he absolutely was not high-grading the trenches. And if he left out some of the lower grades around the edges of the sampled area (i.e. if he'd used a higher grade cut-off), the average grade would have been somewhat higher than 2.99 gpt.

In 1960, Blackhawk Mining did a bulk sample program on what we now know as Timmins 1. At the time, trenching had uncovered two apparently parallel veins, which they named Blackhawk 1 and Blackhawk 2. Historical records are spotty, but they appear to have collected a total of 39 tonnes of material, and all of it was taken along the vein systems.

There were 6 lots in total, and the grades reported as: 18.95, 21.59, 29.04, 11.14, 4.39, and 28.48 grams/tonne. The weighted average bulk sample grade reported then was 17.92 gpt. Jim Tilsley discovered some errors in the calculations (I have his spreadsheet, but I don't quite follow the arguments he's using), and he has restated the weighted average grade at 11.09 gpt.

So, Herb, if we just took the vein material (as is done in some mines), we'd be looking at a pretty good grade. Assuming that the grades are consistent to any depth, of course.

Lar"

Now here is my understanding of how this area will work... They will open pit some of the area that is right next to surface, as the more waste rock you have to deal with, your value of gold in that rock goes down exponentially... If you follow the vein system underground (which James Tilsley believes goes down to 1000 meters and beyond), you would be getting the grading of the veins which Larry has tried to describe above. This makes underground mining VERY profitable... So there you have it. With my questions and Larry's knowledge of the area, it was brought to light that they simply blasted a trench across the Zone and included ALL the material that they trenched, not just the spotty quartz looking stuff. I think you would have had a much better grade, as Larry suggested, if they would have only taken the "GOOD STUFF".

So, grade??? I think it will be a lot better than what the drill has been going through. If the historical "drilling" grade is around 2 grams per ton at Timmins but the bulk sampling from earlier on in the 1960's covers the quartz zones better, then I think you could expect a much higher grade than 1 or 2 grams per ton from the area if that is what the drilling confirms. I think that all we need do is confirm that there is indeed gold in all that quartz to understand that this is a HUGE venture that we will be trying to prove up in the next couple of years... Now, if Mr. Tilsley can just figure out how to convince the rest of the world of our true grade.....

Thank you to Larry Hoover for his insights on this grade thing back in June... If you want refreshers, just find a post of his back in June 29th and follow the thread. He explains a lot there. You will find the thread under the title,"Re: Nagging question in the back of my mind... Thanks Larry :-} "

Herb

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