Differences Between Fuller''s Earth Diatomaceous Earth ...
Aug 20, 2018· Fuller''s earth is composed of mostly montmorillonite clay. Fuller''s clay is mostly used to absorb oils, clarify oils and absorb grease. Diatomaceous earth is made of silica skeletons of microscopic diatoms. Diatomaceous earth is used as a filler, filter, mild abrasive and pesticide.