If we had to guess what cut-off were to be used in this report we are all expecting from Micon? Here's an old one, but you would think it was relevant then why not now??
(page 32-33 of the KJ 43-101 he did in 06/07)
The exploration activities of Timmins Nickel Inc. during 1989 were covered by a report by
Derry, Michener, Booth and Wahl. (T-4077) They completed an independent resource
estimation of the Langmuir No.1 deposit which resulted in 164,450 tons at 2.10% Ni. This is
based only on the INCO diamond drilling during the 1960’s, as the Noranda drilling completed
in 1976 was not available to them. The parameters used were 4 foot minimum mining width,
0.95% Ni minimum grade (cut off), 50 foot projection to nearest hole and if none present then a
projection of 25 feet were used, 95% recovery of nickel mineralization, a 20% dilution factor and
a tonnage factor of 11.0 cubic feet per ton. The resource was calculated from 50 feet to 400 feet
vertically from surface. The crown pillar area from 50 to 150 feet below surface contained 7,493
tons averaging 2.21% Ni (contained in the above resource figure)
Then on Page 35 we see this paragraph:
The metallurgical sampling indicated that the Langmuir No. 1 ore created difficulties when
combined with the Redstone ore. The preliminary testing indicated a recovery of 81.5% on a
1.80% Ni feed grade. Additional metallurgical testing was recommended.