Difference between cleavage and fracture

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Difference between Cleavage and Fracture

difference between cleavage and fracture

Cleavage and Fracture

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Cleavage, fracture, and parting all have to do with the positioning of atom s in a mineral and how it breaks when put under stress. These three properties are listed on the same page due to their comparability, but are each individually discussed. Cleavage Parting Fracture. In mineral terms , cleavage describes how a crystal breaks when subject to stress on a particular plane. If part of a crystal breaks due to stress and the broken piece retains a smooth plane or crystal shape, the mineral has cleavage.

While there are many meanings to the words cleavage and fracture, there are two definitions that are centered around geology, the study of rocks. Different rocks and minerals have different chemical structures giving them various characteristics like color, weight, density, strength, and clarity. Cleavage and fracture refer to the characteristics of rocks when they are broken from stress. For the average human, there may be no differences in the way rocks break or are cut. However, for geologists who specialize in the field, there is a large difference in whether a rock has been fractured or suffered from cleavage. Any mineral in the world has either fractures or cleavage. Some minerals are identified merely by the way that they demonstrate cleavage or fractures.

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Earth Science Stack Exchange is a question and answer site for those interested in the geology, meteorology, oceanography, and environmental sciences. It only takes a minute to sign up. I see both terms refereing to fractures on crystals or minerals, so I wonder if they could be considered synonymous. Cleavage means breaking along planes defined by crystallographic directions.

Cleavage describes a way in which a mineral breaks into flat surfaces. The number of flat surfaces usually range from one to four. This behavior is defined by the crystal structure of the mineral. Cleavage can be simply defined as the property of some minerals to break along specific planes in the crystal. The reason behind the planes of weakness is the weak bonding between the atoms that constitutes a mineral. Thus, cleavage can be associated with the atomic arrangement of a mineral.

A mineral, by definition, is any naturally not manmade occurring, inorganic not a result of life plant or animal substance. Its chemical structure can be exact, or can vary. All minerals belong to a chemical group, which represents their affiliation with certain elements or compounds. The classified chemical groups are known as:. Minerals also have distinctive properties, such as color, hardness, specific gravity, luster, fracture, tenacity. Many of these properties can vary among a single mineral. Color is the easiest physical property to describe, however it can also be the most difficult property to make a mineral identification.



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Difference Between Cleavage and Fracture

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Minerals which have an inherit color (minerals which always occur in the . The difference between cleavage and fracture is that cleavage is the break of a.
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