GENERAL GEOLOGY

Detailed explanation-1: -Cleavage is the property of a mineral that allows it to break smoothly along specific internal planes (called cleavage planes) when the mineral is struck sharply with a hammer. Fracture is the property of a mineral breaking in a more or less random pattern with no smooth planar surfaces.

Detailed explanation-2: -Fracture is a tendency to break into irregular pieces.

Detailed explanation-3: -Fracture refers to rough or irregular surfaces along which the mineral breaks randomly. Cleavage refers to flat planes along which some minerals break. Fracture can be described as conchoidal, rough, smooth, or fibrous. Minerals can be identified by how they break.

Detailed explanation-4: -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.

Detailed explanation-5: -Tenacity is the resistance of a mineral to breaking, crushing, or bending. Tenacity can be described by the following terms. Brittle-Breaks or powders easily. Malleable-can be hammered into thin sheets.