Arkansas Democrat Gazette-I am very upset that I buy newspapers every Sunday. I am very upset that I buy newspapers every Sunday and pay $2.00 and always get coupons and this week the week before Christmas there are none!
Definitions. Cleavage-The tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice. These two-dimensional surfaces are known as cleavage planes and are caused by the alignment of weaker bonds between atoms in the crystal lattice.leavage and fracture describe different ways in which a mineral can break. Cleavage-The tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice.
The fracture cleavage is the dominating structural element of a slate and greatly influences the bending strength and the way processing. Because of this, the investigation of the fabric of a slate mainly focuses on the nature or character of the fracture cleavage.n slates with a spaced cleavage, the fabric elements are not homogeneously distributed but rather defined by domains of layers with a different composition (mica layers). In a spaced foliation the domainal structures have a spacing of more than 10 Âµm and most roofing slates show this spaced fracture cleavage.