Our Miller tables are for taking black sands and gold and refining them down to pure gold. That is what you are left with using the miller tables.
If you have a large amount of sand, gravel we recommend using one of our clean up sluices first to get the sand and gravel concentrated down to just black sand and gold and then running them through one of our miller tables.
If you have any questions about the process please don't hesitate to contact us!