Crushing Rocks For Gold

Crushing rocks for gold santhosa crushing and milling hard rock mining icmjs , oct 25, 2015 so chris, i am crushing 4" rocks with a gs5000hd gold stryker impact mill, and coming out with 30 material lots of it 100 then washing it thru a 12" trommel and 8ft of gold hog matting at the end of the sluice i have a 5 gallon bucket to catch any heavy material and runt that thru the spiral wheel.