Sapphire has conchoidal for fracture and has no cleavage although there is a rhombic parting.
When minerals do not display cleavage, they are said to have a fracture. Fracture describes the way a mineral breaks when it does not have cleavage planes. This can result in irregular or random patterns of breakage.
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
Azurite does not have cleavage, but it exhibits a conchoidal fracture, meaning it breaks into smooth, curved surfaces similar to glass.
When minerals do not display cleavage, they are said to have a fracture. Fracture describes the way a mineral breaks when it does not have cleavage planes. This can result in irregular or random patterns of breakage.
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Quartz does not have cleavage. However, it does have fracture. Its fracture is conchoidal.
Cobalt has no cleavage because it does not display cleavage properties. Instead, cobalt typically shows a conchoidal fracture when broken.
it has no cleavage
it has no cleavage
cleavage
Fracture
Hematite has a characteristic fracture, meaning it breaks irregularly with rough or jagged edges and no smooth cleavage planes.
the cleavage is Poor
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.
It has both cleavage and fracture.