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

To: Diamond Daze who wrote (1817)	11/15/1997 9:28:00 AM
From: Bill Jackson	Read Replies (2) \| Respond to of 3744

Chris; The key is time, even low grades can be heap leached if you set up a low cost system with minimal manning and let it operate for a longer time. You might need to have a pre-leach phase of bacterial oxidation for a year or so to expose the precious metals to subsequent leaching. A plastic collector sheet, graded and with drainage pipes to a low point, along with a pump house and a bacteria breedup innoculation tank to start. Periodic pumping via spray nozzles over the broken down ore, and wait for the bacteria to eat the sulfides. Then after you have exposed enough, you start the leach, and that runs semi continuously for a year or more with the gold collecting in the liquid and being extracted from there from time to time. Fence it and it will run un attanded for a year or more(if properly set up of course), so it has low costs. Bill

To: Diamond Daze who wrote (1817)	11/15/1997 5:16:00 PM
From: E. Charters	Read Replies (2) \| Respond to of 3744

I am actually one who thinks that it might be worth researching the gold in seawater problem. I have several methods that might work. I tested on carbon collection method with subsequent electrolysis and it did work on some types of solutions. Some scale testing is required. Needs few spare and brave bucks. Some atom gold deposits in Burma in plant matter have some people sratching their head after 80 years. It is fire assayable at 3 grams/ton but there doesn't seem to be a way of getting it out. (Again I think I know how) The theory that colloidal gold ended up on sea bottoms under certain conditions is a possibility which keeps people going. After all copper does. The boys trying to get gold out of water around Salt Lake City (It dfoes run to 50PPB I heard and 1ppb is worth 1 cent) were using these special assay techniqes on the precipitated gold on the bottom of swimming pools they were using for testing and this is probably how this micro fine stuff all got started. --------------------------------------------------