Fuller’s earth is a large class of naturally occurring minerals and consists of hydrated aluminum silicates. A major component of fuller’s earth is attapulgite, a hydrated aluminum-magensium silicate,it is beige, grey or brown powder or granules.
Fuller's earth is any clay material that has the capability to decolorize oil or other liquids without the use of harsh chemical treatment.Fuller's earth typically consists of palygorskite (attapulgite) or bentonite.