Checking black sand for Au Gold Refining Forum. Jan 17 2009· Hello Terry I've tried what you are about to attempt Someone told me that the yellow is from iron I tried to dissolve all of the black sand with hcl and could never get it to totally disapper
Pure Gold and Iron from Sand Elmer Gates. quantities of the purest iron and gold can be extracted from sand. This means sunlight he will notice that it contains tiny black grains and tinier yellow specks.
Jun 18 2013· Best Answer Black sand is a natural accumulation of magnetite which is a heavy resistant mineral. Therefore magnetite tends to concentrate with other heavy resistant minerals including gold in gravels where the light and heavy minerals have been separated by the energy in moving water.
If you live in an area with large deposits of blackcolored sand are you sitting on tons of gold that you can refine? Or if you work for a mining company that pulverizes minerals and ends up with quantities of black sand it is likely to contain quantities of gold that are worth extracting?
Mar 28 2012· this video show's you how to separate your blonde sands and gold from your black sand concentrates. You use a magnet in this process and you'll need to have your black sand dry before you do this.
It appears none of the gold prospectors spend nor time or money on assaying their black sands for gold value determination. Instead they use a rare earth magnet to tells them what is in there and see that most of the gold is magnetite with sometimes hematite.