... of Gold Shaking Table:How efficient is a gravity concentrating table compared to a gold pan? Well, using a full sized table with ... of the table), mounted in a near flat position, on a supporting frame that allows the table to slide along the long axis of the table.On a table ... gravity separations, a difference in specific gravity of the materials needs to be significant, at 1 or greater. I.e., a 2.2 ...