What is cobalts uses
Cobalt has perfect cleavage in all directions.
Cobalt has no cleavage because it does not display cleavage properties. Instead, cobalt typically shows a conchoidal fracture when broken.
Cobalt has a cleavage in three directions, forming a cube.
Sulfur's cleavage is imperfect.
cleavage....
it has no cleavage
imperfect cleavage
it has no cleavage
What cleavage does pyrite have
cleavage
No it has cleavage and it's cleavage is "absent".
It has both cleavage and fracture.