The term is called CLEAVAGE. It is a special form of Foliation in rock metamorphism.
It tells you that that mineral is smooth and flat ,and so are the chemical bonds. Because if it didn't it would be a fracture which means it is jagged and not smooth. I am sure of this answer because cleavage means physical property of some minerals that cause them to break along smooth, flat surfaces.
Surface waves (as the name suggests) travel along Earth's surface. Seismic waves that travel through earth's interior are known instead as body waves.
cleavage
a slump
fracture
Calcite exhibits cleavage in three directions.
cleavage
A mineral that splits evenly along flat surfaces is said to have a cleavage fracture. Cleavage occurs when a mineral breaks along weak atomic planes due to the internal atomic structure and bonding of the mineral.
To test cleavage in a mineral, you can use a sharp tool, like a knife or a fingernail, to apply pressure on the mineral's surface along its natural planes of weakness. When the mineral splits, observe whether it breaks smoothly along these planes, indicating cleavage. The quality of the cleavage can be assessed by examining the flatness and angularity of the resulting surfaces, as well as how easily the mineral splits. Different minerals exhibit different cleavage patterns, which can help in their identification.
The name of a mineral that splits along flat surfaces is called mica. Mica's cleavage planes allow it to be easily split into thin sheets.
That property is called cleavage or fracture, depending on how the mineral breaks.
Cleavage is when you can break the rock into square like pieces and Fracture is when you break a rock into uneven different shaped pieces.
the mineral's tendency to split along a smooth surface
Cleavage
The breaking of a mineral along a rough or irregular surface
When a mineral breaks along a weakly-bonded plane, it is called cleavage. Cleavage is a property that describes how a mineral breaks along its crystal structure.
This is known as conchoidal fracture.