Mica
Mica is crystalline and forms layers.
Halite is a cleavage because it splits evenly, but fracture would mean it breaks irregularly.
... because calcite has a regular arrangement of atoms.
Breaks along mineral planes are referred to as cleavage planes (breaks along a plane) or conchodial fractures (no distinct break controls), depending on the mineral. more general breaks in rocks are referred to as fractures or joints and are often along fault planes or areas of stress in the rock. A crumbly rock texture is found in either an unconsolidated unlithified rock or a heavily chemically or mechanically weathered rock
The type of fracture formed when a mineral splits evenly is called a cleavage. An example is when mica breaks apart in sheets.
Atomic Arrangement
atomic arrangement
The two way by which minerals break are called cleavage and fracture. Cleavage is when a mineral breaks along a plane whose atomic bonds are weaker than in the rest of the mineral. Fracture is when a mineral is forced to be broken in an unnatural direction.
It is a type of igneous or sedimentary rock.
A mineral that breaks into jagged pieces exhibits fracture.
Cleavage
The mineral calcite.
The way a mineral breaks is a better clue to its identity than are its color and luster.
True!
Feldspar.
fracture