What factors determine crystal structure for a ceramic with

What factors determine crystal structure for a ceramic with ionic bonding?

Solution :

The main two factors which determine the crystal structure for a ceramic material with ionic bonding are

1) The radius of each ion

2) Size of the charge on each ion

SO these two factors determine the crystal structure.

For example take Silicate ceramics which has a very weak ionic bonding and they have atetrahedral configuration.