Crystalline Solids Vs Amorphous Solids

Crystalline Solids	Amorphous Solids
The crystalline solids have definite characteristic shape.	The amorphous solids have irregular shape.
They have regular arrangement of the constituent particles. They are said to exhibit long range order.	They do not have any regular arrangement of the constituent particles. They may have short range order.
They have sharp and characteristic melting point.	They do not have sharp melting point. They gradually soften over a range of temperature.
When cut with a sharp edged tool, they split into two pieces and the newly generated surfaces are plain and smooth.	When cut with a sharp edged tool they cut into two pieces with irregular surfaces.
They have a definite and characteristic enthalpy of fusion.	They do not have definite enthalpy of fusion.
They are anisotropic i.e. their physical properties like mechanical strength, refractive index, electrical and thermal conductivity are different in different directions.	They are isotropic i.e. their physical properties are same in all directions.
They are true solids.	They are pseudo solids and super cooled liquids.
Examples – iron, silver, common salt, potassium nitrate etc.	Example – glass, rubber, plastics etc.