Development Old Numbers reAvg Cost & Old Production Schedule
in response to
by
posted on
Apr 27, 2009 03:33AM
Producing Mines and "state-of-the-art" Mill
The press release refers to 1800 tpd being mined and that would be at our high grade ore. If you look back at our old technical report - it was based on 1500 tpd and that would be 300 tpd coming from Redstone. We also have at the 150m level the high grade ore which is at 3.93% Ni. Our old break even cost was $5.50 per lb of nickel (p. 8 of old Technical report).
The old Table 17-2 Life of Mine ore production schedule shows the following:
Period |
Total Tonnes |
Grade (N%) |
Stope (tonnes) |
Ore Dev(tonnes) |
Q1-08 |
0 |
0 |
0 |
0 |
Q2-08 |
8,150 |
0.71 |
0 |
8,150 |
Q3-08 |
29,052 |
0.8 |
0 |
29,052 |
Q4-08 |
70,786 |
1.37 |
52,552 |
18,234 |
Q1-09 |
108,000 |
1.15 |
108,000 |
0 |
Q2-09 |
108,000 |
1.09 |
108,000 |
0 |
Q3-09 |
108,000 |
0.74 |
108,000 |
0 |
Q4-09 |
98,305 |
0.64 |
98,305 |
0 |
Q1-10 |
67,505 |
0.68 |
67,505 |
0 |
Total |
596,797 |
0.930.93 |
541,362 |
55,436 |
Although this report has been superseded by actual results you can tell with 15,361 tonnes grading 0.51% Ni based on a bulk sample (see PR 6-09). The actual recovery was skewed downward as a result of some talcy development material being mistakenly mixed with the bulk sample. Generally disseminated material containing 0.5% to 0.6% ni was floated with an 87-88% recovery from the heaslewoodite mineralization.
So we would restart in the Q3 schedule by my guestimate.