Cleavage is the tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice. Fracture is the way a mineral breaks other than along a cleavage plane. They both describe a way a mineral can break.
Azurite does not have cleavage, but it exhibits a conchoidal fracture, meaning it breaks into smooth, curved surfaces similar to glass.
Malachite typically exhibits conchoidal fracture rather than cleavage. This means that it breaks in a smooth, curved manner similar to glass or obsidian, rather than along specific planes like cleavage.
Hematite has a characteristic fracture, meaning it breaks irregularly with rough or jagged edges and no smooth cleavage planes.
It has both. It's cleavage is perfect, and it's fracture is sub-conchoidal.
yes rutile has cleavage-distinct (100) yes rutile has fracture
Sapphire has a mixture of both cleavage and fracture characteristics. It has poor cleavage in one direction and conchoidal fracture, which means it breaks with smooth, curved surfaces similar to glass.
Azurite does not have cleavage, but it exhibits a conchoidal fracture, meaning it breaks into smooth, curved surfaces similar to glass.
Quartz does not have cleavage. However, it does have fracture. Its fracture is conchoidal.
Malachite typically exhibits conchoidal fracture rather than cleavage. This means that it breaks in a smooth, curved manner similar to glass or obsidian, rather than along specific planes like cleavage.
it has no cleavage
it has no cleavage
cleavage
Opal does not have a cleavage or fracture because it lacks a distinct cleavage plane like minerals such as mica or calcite. Instead, opal typically fractures conchoidally, meaning it breaks with smooth, curved surfaces similar to glass.
Fracture
Hematite has a characteristic fracture, meaning it breaks irregularly with rough or jagged edges and no smooth cleavage planes.
the cleavage is Poor
It has both: uneven fracture, and perfect cleavage in three directions.