clay mineral


noun
  1. any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays.

Origin of clay mineral

1
First recorded in 1945–50

Words Nearby clay mineral

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British Dictionary definitions for clay mineral

clay mineral

noun
  1. any of a group of minerals consisting of hydrated aluminium silicates: the major constituents of clays

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