Explanation

Diamond is anisotropic because its properties vary depending on the direction in which they are measured.

This is due to its crystalline structure, where the carbon atoms are arranged in a specific lattice.

The bonds between the carbon atoms are strong and are oriented along specific crystal axes.

As a result, diamond exhibits different mechanical strengths, refractive indices,

And other properties depending on the orientation of the crystal axes relative to the applied force or measurement.