galena
The cleavage of sodium chloride crystals is {100} Perfect, {010} Perfect, {001} Perfect.
Cobalt has perfect cleavage in all directions.
Hematite has a characteristic fracture, meaning it breaks irregularly with rough or jagged edges and no smooth cleavage planes.
Diamond has perfect cleavage in four directions, fluorite has perfect cleavage in four directions, sodalite has perfect cleavage in three directions, and sphalerite has perfect cleavage in six directions.
That means when you break it it will form a smooth flat surface. Slate has near perfect cleavage so it's used to make pool tables and blackboards.
The mineral cleavage is made up of many other particles to form a rock when the rock cleavage is just a rock.
talc's cleavage is perfect in one direction, basal.
perfect
Muscovite has perfect basal cleavage, or book cleavage.
It has both: uneven fracture, and perfect cleavage in three directions.
It has both. It's cleavage is perfect, and it's fracture is sub-conchoidal.
After the Webmineral site the cleavage is: {100} Perfect, {010} Perfect, {001} Perfect.