lohkeavuus
Lohkeavuus refers to the tendency of a mineral or rock to break along definite planes of weakness. This characteristic is a result of the mineral's internal atomic structure. When the chemical bonds between atoms are weaker in certain directions than in others, the material will fracture preferentially along these weaker planes. This contrasts with cleavage, which is a more general term for the tendency to split along planes, regardless of their origin.
Minerals exhibiting distinct lohkeavuus often have a crystalline structure with layers of atoms that are held
The degree of lohkeavuus can vary. Some minerals have perfect lohkeavuus, breaking cleanly along smooth, flat