Micas like muscovite and biotite have flexible cleavage flakes that will bend, and when the strain is taken off they relax back to their original position and shape.

Question

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Micas such as muscovite and biotite have perfect cleavage in one direction which creates thin, flexible flakes. These flakes can bend but will not return to their original position and shape once the strain is taken off, therefore making them not elastic.

Micas Like Muscovite and Biotite Have Flexible Cleavage Flakes That