Dear Shahin,

This is a form to grow crystals. The placement of a seed crystal into a solution allows the recrystallization process by eliminating the need for random molecular collision or interaction. By introducing an already pre-formed basis of the target crystal to act upon, the intermolecular interactions are formed much more easily or readily, than relying on random flow. Often, this phase transition from solute in a solution to a crystal lattice will be referred to as nucleation. Seeding is therefore said to decrease the necessary amount of time needed for nucleation to occur in a recrystallization process.

A seed crystal is a small piece of single crystal or polycrystal material from which a large crystal of typically the same material is to be grown in a laboratory.

Formation of seed crystal is governed by Physical Intermolecular interaction theory.

Thanks Mohit