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n. any of a group of soft, clay-like silicate minerals having many industrial and technical uses

n. A hydrous silicate of aluminium occurring in soft clay-like masses of a rose-red color, originally from Montmorillon in France.

"However, it is better and cheaper to try to find another native clay that can do the same job. bentonite: This is the commercial name for an extremely plastic clay also known as montmorillonite clay."

vermiculite   

acid-activated    seafoam    caseinate    sulfite    lactylate