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To: marek_wojna who wrote (89044)8/23/2002 5:02:04 PM
From: E. Charters  Read Replies (1) | Respond to of 116801
 
I used to hose down outcrop after the hoe would dig the soil above the rock. This was in order to expose it and clean it for mapping and sampling. You would use either a 5 or 10 HP Wajax high speed pump and fire hose, washing the excess material into sumps. I would bring a pan and try areas that looked promising, panning the sand directly above the vein that was residue. If the area panned at all, with even a few grains it generally assayed well. That settled any argument people had about what to sample.

Anyway.. later in the bar that night, when the lights were lower, we would examine our hands and arms, and you could see little flecks or gold stuck to the skin. Gold sticks to leather or skin, I am not sure exactly by what principle. It may be the oil in the skin, as some metals will fix to oils of different kind. This is why they used sheep skin specifically in ancient sluice boxes, because of the attraction of gold to lanolin, not so much the tendency for gold to get stuck in the sheep's wool. If gold woold get stuck in wool so woold everything else, and the wool will quickly wear off in a sluice.

Try this. Walk in a bank and ask to examine some gold bricks. You will notice that if you don't specifically put the metal down, when you walk out it will still be stuck to your fingers.