The Mixer/Mill® is a high-energy ball mill that grinds dry, brittle samples such as Rocks, Minerals, Sand, Cement and Slag. It can also be utilized for mechanical alloying, slurry grinding, blending powders and mixing emulsions. It accommodates sample sizes ranging from 0.2 - 10 grams per vial and has a figure eight motion that has been proven to be more efficient than side-to-side or planetary motion found in other mills. It is built to be low maintenance with ring bearings in the motor and clamp that are sealed for several years of operation.