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

To: I_C_Deadpeople who wrote (3253)	1/12/2000 8:12:00 PM
From: E. Charters	Read Replies (3) \| Respond to of 3744

Drill results understate true in several ways 1. they are totally falsely reported by shysters 2. They are small sample size and suffer from statistical imporobability of sampling. 3. they are far apart and suffer from lack of numerical probability similar to number two. 4. drill holes may not be properly sampled themselves in the splitting and sample selection. At any rate dril coreis almost always weak compared to assays of drill hole sludges from the same hole. In general the rule in mining is recovery should be higher than any group of drill hole assays. This is called the nugget effect. It is rare that drilling will report the true grade. Even underground channels may recover only 50% of the true grade recovered in a mill. (Dome Mines Timmins experience.) Surface however can be higher for may other reasons such as oxidation of rock causing specific gravity problems and the tendency of samplers to load up on richer looking samples. What is true? The recovery from a reliable balanced standard mill of a few thousand tons of the material. Best assay is to mine it. If you don't know whether to dothat for sure, call me and pay me to tell you how to arrive at that conclusion. One recommendation for free is not to use a carbon in pulp mill. There is no rule of thumb on cost to mill or mine Pt versus gold as it depends on the mine and mill. It is much harder to produce in pure form but is easy to recover in sulphide or antimonide concentrate. It is much harder to assay and mine in general because it is far spottier than gold. Cost? I would say impossible to tell. It is partly a producer product but the last few years have told us that gold is no sinecure either. EC<:-}