A fibrous clay mineral composed of hydrated aluminum-magnesium silicate. Palygorskite is very absorbent and is a component often found in fuller's earth. It has been used as a filler in paper and coatings. Palygorskite is one of the clay used as a base for indigo in Maya blue. One type of palygorskite, attapulgite, was first discovered in Attapugus, Georgia.
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- Encyclopedia Britannica, http://www.britannica.com Comment: "Palygorskite." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 29 Jan. 2004 .