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.
cleavage. n. 1. the separation between a woman's breasts, esp as revealed by a low-cut dress. 2. a division or split. 3. (Minerals) (of crystals) the act of splitting or the tendency to split along definite planes so as to yield smooth surfaces. 4. (Biology) Also called: segmentation embryol (in animals) the repeated division of a fertilized ovum into a solid ball of cells (a morula), which later becomes hollow (a blastula). 5.