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A silicate in which aluminum replaces some of the silicon, especially a rock-forming mineral such as a feldspar or a clay mineral.
- ‘These minerals are hydrated aluminosilicates consisting of sheets of alumina and silica with interchangeable cations and considerable amounts of combined or loosely bound water.’
- ‘In concrete, when the lime and clays react, they form inorganic aluminosilicate polymers.’
- ‘These aluminosilicates form porous structures whose cavities can act as storage for ions and molecules.’
- ‘The weathering and decay of aluminosilicate minerals occurs by hydrolysis, and it is well documented that the rate of many hydrolysis reactions is sensitive to pH.’
- ‘In carbonate-rich soils, rapid neutralization of rainwater by carbonate minerals restricts the mobilization of aluminosilicates and oxides.’
Early 20th century: from alumino- (combining form of aluminum) + silicate.
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