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Gold/Mining/Energy : Naxos Resources (NAXOF) -- Ignore unavailable to you. Want to Upgrade?

To: mark silvers who wrote (12938)	5/17/1998 9:13:00 AM
From: Richard Mazzarella	Read Replies (1) \| Respond to of 20681

Mark, we have had mixed reports from the company on this issue haven't we? The latest speculation is that we are getting is a standard fire assay because of "free" (placer) gold. The issue in any recovery process (fire assay is recovery) is to have the precious metals coalesce to a mass. Just dispersed in solution, liquid or solid, doesn't help. GPGI actually melts the ore to a glass, freeing the precious metal from a solid lattice, in the presence of copper which has the precious metals preferentially alloy with the copper. The copper/precious metal alloy is then further refined to get the precious metals out. Assay can have considerable art involved to prevent volatilization of the precious metals and coalescing them. I am not skilled in assay art, but understand some of the physics of dilute materials dispersed in solids. Pretreatment provides a mechanism to allow an easier access of leaching components to the materials of interest. Sorry I can't be of more specific help.