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aluminum silicate

any of a group of naturally occurring, water-insoluble substances, obtained from clay or synthesized, containing varying amounts of oxides of aluminum and silicon, Al 2 O 3 and Si 2 O 3 , and used in the manufacture of glass, ceramics, paints, printing inks, rubber, and plastics.
Compare mullite. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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  • Pyrophyllite is a hydrous aluminum silicate with a structure similar to talc.

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