aluminum silicate

noun

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.

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China clay, or aluminum silicate, is a permanent and valuable white pigment showing very little hiding power in oil.

Clay is soil consisting principally of aluminum silicate; in chalk, soft calcium carbonate predominates.

Jadeite is a sodium aluminum silicate and nephrite, a calcium magnesium silicate.

Pyrophyllite (hydrated aluminum silicate) resembles talc in some of its properties and is used in much the same way.

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