How do I separate gold from surrounding ores
I live near the site John Marshall discovered gold in 1848. There is gold dust and particles everywhere! Problem is that the gold is dust or fine powder form and the gold strongly adheres to it's surrounding ores. Panning is tedious and not effective. How can I separate the gold dust/powder from the other minerals? I have heard using Auger Regis is effective, but cannot find anything on how to use it, purchase it, or make it myself. Any suggestions/instructions on making or using auger regis; or any other more effective method of extracting the gold from the other minerals is greatly appreciated.