what is the difference between crystal face and cleavage plane?
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The smooth surface of a mineral can have crystal face or a cleavage plane. Crystal face can be described as the smooth plane that is formed on the surface of a crystal. ... On the other hand, cleavage plane can be described as the tendency of crystals to split along specific structural planes.
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A face is a flat surface. An edge is where two faces meet. A vertex is a corner where edges meet. The plural is vertices.
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All are monoclinic, with a tendency towards pseudohexagonal crystals, and are similar in chemical composition. The nearly perfect cleavage, which is the most prominent characteristic of mica, is explained by the hexagonal sheet-like arrangement of its atoms.
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Face Centered Cubic (fcc) or Cubic Close Packed (ccp) These are two different names for the same lattice. We can think of this cell as being made by inserting another atom into each face of the simple cubic lattice - hence the "face centered cubic" name.
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Calcite: Shows a rhombohendral crystal shape. ... Halite has a cubic crystal form, so it cleaves into perfect cubes. It has roughly the same hardness as calcite, and is colorless. Although taste is an important characteristic, caution students to avoid tasting minerals; some minerals have very unpleasant tastes.
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The difference between point defect and line defect is that the point defects occur only at or around a certain point of the crystal lattice whereas the line defects occur in a plane of atoms in the middle of the crystal lattice.
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The difference between cleavage and fracture is that cleavage is the break of a crystal face where a new crystal face is formed where the mineral broke, whereas fracture is the "chipping" of a mineral. ... If a mineral with cleavage is chipped a certain way, it will fracture rather than cleave.
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Key difference: Glass is a generic name, while, crystal is a subcategory of glass, made in the same manner as glass but with different materials. Hence, all crystal is glass, but not all glass is crystal. ... Actually, there is no official clean cut definition of crystal.
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These two-dimensional surfaces are known as cleavage planes and are caused by the alignment of weaker bonds between atoms in the crystal lattice. Cleavage planes are distinguished from fracture by being smooth and often having reflective surfaces. Fracture - The way a mineral breaks other than along a cleavage plane.
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(a) Explain the difference between a primitive cell and a unit cell. Primitive cells allow lattice points only at the corners of a cell. Unit cell allows lattice points at corners, face centers and body centers. ... We can analyze the crystal as a whole by investigating a unit cell.
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The difference between edge and screw dislocation is that the edge dislocation occurs when an extra half-plane of atoms exists in the middle of the crystal lattice whereas the screw dislocation occurs when the planes of atoms in the crystal lattice trace a helical path around the dislocation line.
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These include color, crystal form, hardness, density, luster, and cleavage.
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For edges you'll joint one edge and then go to the table saw to rip the opposite edge. For faces, joint one face and then use a planer to make the opposing face parallel. Jointing opposite faces simply doesn't work to make them parallel.
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If you're talking about a three-dimensional figure, e.g. a cube, then a face is one of the planar surfaces. ... If you're talking about two-dimensional figures then a side is one of the edges, e.g. “a triangle has three sides”.
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Crystalline solids have well-defined edges and faces, diffract x-rays, and tend to have sharp melting points. In contrast, amorphous solids have irregular or curved surfaces, do not give well-resolved x-ray diffraction patterns, and melt over a wide range of temperatures.
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In mineralogy|lang=en terms the difference between cleavage and twinning. is that cleavage is (mineralogy) the tendency of a crystal to split along specific planes while twinning is (mineralogy) the formation of twin crystals.
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In comparison, radiant cut diamonds are usually rectangular, but some can be square. On the other hand, emerald cut diamonds are rectangular with truncated corners. ... Regardless of the shape, both diamonds have cut corners, and therefore, they are both prone to less chipping than other diamond shapes.