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.
Many minerals exhibit cleavage only on one side, and some may exhibit different quality cleavage on different crystal sides. 1  The following criteria may be expected when analyzing the cleavage of any particular mineral: 2  One Direction. 3  Two Directions. 4  Three Directions. 5  All Directions.