Cleavage, in structural geology and petrology, describes a type of planar rock feature that develops as a result of deformation and metamorphism. The...

a crystal or mineral tends to split Cleavage (embryo), the division of cells in an early embryo Cleavage (geology), foliation of rock perpendicular to...

be made in the related zinc blende structure, with similar cleavage planes. Cleavage (geology) Hurlbut, Cornelius S.; Klein, Cornelis, 1985, Manual of Mineralogy...

slope construction. Cleavage (geology) Discontinuity (geotechnical engineering) Exfoliating granite Fissility (geology) Fold (geology) List of rock textures...

Cleavage is the narrow depression or hollow between the breasts of a woman. The superior portion of cleavage may be accentuated by clothing such as a low-cut...

after him. Cleavage (crystal) Cleavage (geology) Dynamic quartz recrystallization Petrology Pressure solution Salt deformation Structural geology Bishop,...

Pencil cleavage in geology refers to a cleavage in rock such that long, slender, pencil-shaped fragments of rock are created by fracturing during the weathering...

Geology (from Ancient Greek γῆ (gê) 'earth' and λoγία (-logía) 'study of, discourse') is a branch of natural science concerned with the Earth and other...

Structural geology is the study of the three-dimensional distribution of rock units with respect to their deformational histories. The primary goal of...

In structural geology, a fold is a stack of originally planar surfaces, such as sedimentary strata, that are bent or curved ("folded") during permanent...

cultural norms, and artistic depictions regarding cleavage and clothes that accentuate or flaunt cleavage. From the absolute modesty of the 16th century...

hardness, and cleavage. It excludes ozokerite, limonite, obsidian and many other amorphous (non-crystalline) materials that occur in geologic contexts. It...

This glossary of geology is a list of definitions of terms and concepts relevant to geology, its sub-disciplines, and related fields. For other terms related...

collectors. It has a perfect {100} cleavage plane, parallel to the long axis of the crystal, and a second good cleavage plane {010} that is at an angle of...

The geology of the Iberian Peninsula consists of the study of the rock formations on the Iberian Peninsula, connected to the rest of the European landmass...

minerals including arsenopyrite, pyrite and magnetite. Cleavage (crystal) Fracture (geology) Mineral#Cleavage, parting, fracture, and tenacity Rudolf Duda and...

stress is released either along preexisting structural elements (such as cleavage) or perpendicular to the former direction of tectonic compression. Cooling...

materials such as quartz also exhibit conchoidal fractures when they lack a cleavage plane and do not break along a plane parallel to their crystalline faces...

direction of metamorphic compression. The foliation in slate, called "slaty cleavage", is caused by strong compression in which fine-grained clay forms flakes...

impart a silky, sometimes golden[citation needed] sheen to the surfaces of cleavage, called "phyllitic luster". The word comes from the Greek phyllon, meaning...

In geology, strike and dip is a measurement convention used to describe the plane orientation or attitude of a planar geologic feature. A feature's strike...

by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some...

L0-1, with an azimuth and plunge defined by the fold. This is the typical cleavage-bedding intersection angle and is diagnostic of the plunge of the fold...

a result of dislocation processes. S-fabric — a planar fabric such as cleavage or foliation; when it forms the dominant fabric in a rock, it may be called...

metamorphosed mudrocks throughout various geologic formations of the district into slates by creating slaty cleavages. In the Early to Middle Ordovician the...

a Mohs hardness of 4.5. It is transparent to translucent with perfect cleavage. Refractive index values are nα = 2.170 – 2.200, nβ = 2.220, and nγ = 2...

convert from morphological to structural units. As an example, calcite cleavage is given as "perfect on {1 0 1 1}" in morphological coordinates and "perfect...

(plágios) 'oblique' and κλάσις (klásis) 'fracture', in reference to its two cleavage angles. Plagioclase is the most common and abundant mineral group in the...

planes of cleavage. Slate is an example of a foliated metamorphic rock, originating from shale, and it typically shows well-developed cleavage that allows...

compressive stress. Fractures formed in this way are sometimes called axial cleavage, longitudinal splitting, or extensional fractures, and are commonly observed...