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Gold/Mining/Energy : NDT VENTURES -- Ignore unavailable to you. Want to Upgrade?

To: russwinter who wrote (915)	1/3/2001 8:45:06 PM
From: Elizabeth Andrews	Read Replies (1) \| Respond to of 992

Where's the evidence of excellent metallurgy? Which mine processes heap leach material for $3/tn when the stripping ratio is about 4:1 which about what this appears to be? If metal loss is 20% and the stripping costs from $1.50 to $2 per tn and the grade is 1.2 g/tn Au then the cost of the rock to the pad is $3.85 per tn or $6.60 net /tn pre pad. Then you have to crush it, stack it, leach it, agglomerate? electro win, and , and , and.....not much margin here. If the recoveries are 65% which is more normal what then? What is the leach rate at 3/4" crush? Further stuff for thought?

To: russwinter who wrote (915)	1/3/2001 8:59:16 PM
From: Claude Cormier	Respond to of 992

<, it seems they have abundant and consistent $8-$10 rock at surface in wide intervals> Here is what I get: Section Weighted Value Avg.Grade /ton US$ T-9 1,19 10,37 T-8 1,45 12,58 T-7 1,38 12,01 T-6 1,53 13,35 T-5 0,82 7,09 T-4 1,23 10,74 <With excellent metallurgy and a simple operation, you'd have processing costs of about $3/ton? > Well initial bottle roll tests were 90% recovery so it bodes well. And mining & processing costs should be below $4 <So waste is going to be the determining factor, and my initial assessment is that waste (or more specifically the stripping ratio) will be nominal?? > Look low indeed. But it is hard to compute without the good software. <a little deeper on the 09, 14, and 15 holes. But, you need to go through dead zone (especially on 09)to get there. > Well take 09... you have to remove 26 meters of waiste to access 72 meters of ore which give a ratio of 26:72 or 0,36:1. Hole 14 is 1,04:1 .. still not bad. But hole 15 is 3,6:1. Still with all the holes starting from surface and being continuous, we have a good receipe. This deposit is on the top of the hill. Look at the following cross-section: northair.com northair.com Not as good as Alamo Dorado... but I like the idea. Will see how this thing develops... I am certainly not selling those shares.