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  1. Oxford American Dictionary

    clay mineral

    • IPA[klā ˈmin(ə)rəl]
    • n.
      any of a group of minerals that occur as colloidal crystals in clay. They are all hydrated aluminosilicates having layered crystal structures.

    • noun: clay mineral, plural noun: clay minerals

    • 更多解釋

    clay mineral

    • n.
      any of a group of minerals that occur as colloidal crystals in clay. They are all hydrated ...

    Oxford Dictionary