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Gold/Mining/Energy : Precious and Base Metal Investing
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To: Taikun who wrote (33677)1/2/2005 4:34:14 PM
From: E. Charters  Read Replies (2) of 39344
 
That (limestone scrubbing) is Hugh Ambercrombie's thing in Birch Mountain. I met the BM people in Fhart MacMurraystan doing some explo up there in the nineties. We were both looking for the source of the placer gold in AB. Inconclusive was the final thinking, although some evidence favoured a local source connected with Carlin type thingies. At the time the Syncrude engineers were looking at taking metals out of the tailings of the Tar Sands. It is about 20 dollars a ton. Tonnage is staggering.

Some other people are trying to get the sand tailings themselves to give up titanium and zircon. Some doubt that they can concentrate it. I am not so sure that it cannot be done, due to my experience in paramagnetic separation in diamond indicator labs. Paramagnetic separation is quite effective or the diamond pickers could never get their work done. One can separate olivine from quartz in high intensity mag fields. We studied this at Haileybury in the 70's but I never saw a commercial app yet.

The limestone thing is connected with the effluent abatement need of the refineries. There is abundant surface limestone in the area. In fact the limestone was reputed to be the source of the local placer gold. Providing limestone for the scrubbers is a business that apparently has a demand.

EC<:-}
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