Question: what is the difference between crystalline and noncrystalline structures in materials?
Answer: The most basic difference between crystalline solids and noncrystalline solids (NCS) is that a long-range order in the distribution of atoms (ions) or molecules exists in the first case but not in the second. ... Any real suhstance, including noncrystalline material, is inhomogeneous regardless of its form or scale.