- Crystalline :
![](https://aluminiummetals.wordpress.com/wp-content/uploads/2022/05/crystalline.png?w=429)
- All the atoms or molecules are arranged in a regular and orderly fashion in all three dimensions.
- The solids are in a ductile manner.
- Solids behave elastically up to their yield points.
- Tensile strength is high.
- The Dislocation defects in crystals motion as possible.
- Amorphous:-
![](https://aluminiummetals.wordpress.com/wp-content/uploads/2022/05/amorphous.png?w=429)
- All the atoms or molecules area arranged irregularly in all three dimensions.
- The solids fracture in a brittle manner.
- Solids do not behave elastically.
- The tensile strength is low.