Small Aluminum Alloy Mortar Pestle Rock-Ore Crusher-Pulverizer-Assay-Gold-Quartz 2 Brand Make Your Own Gold Bars. This fits your . Make sure this fits by entering your model number. This Mortar Pestle is made from Aluminum Alloy 3-7 8 tall 4 wide at the top.Gold Ore Impact Flail Processing Rock Quartz Crush Mill. Gold stryker gs7000 ld is a very large flail impact rock crusher gold mill that is very portable and perfect for the small gold mining operation the gold stryker gs7000ld uses a large 25 hp honda industrial engine for many years of trouble free use it can process and crush up to 7 tons in.