
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure describes a highly ordered structure, occurring due to the intrinsic nature of molecules to form symmetric patterns. A crystal structure can be thought of as an infinitely repeating array of 3D ...
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http://en.wikipedia.org/wiki/Crystal_structure

Is a regular, repeating, three-dimensional arrangement of bonded atoms.
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for crystalline materials, the manner in which atoms or ions are arrayed in space. It is defined in terms of the unit cell geometry and the atom positions within the cell.
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http://www.chemicalglossary.net/definition/337-Crystal_Structure

(crystal system) The atomic arrangement of the atoms of an element when it is in its solid state.Cubic, Body Centered, Face Centered, Hexagonal, Monoclinic, Orthorhombic, Rhombohedral, Tetragonal
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http://www.chemistry-dictionary.com/definition/crystal+structure+%28crystal

for crystalline materials, the manner in which atoms or ions are arrayed in space. It is defined in terms of the unit cell geometry and the atom positions within the cell.
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http://www.encyclo.co.uk/local/20089

<chemistry> The configuration in which atoms are arranged in a material. These arrangements have a direct effect on the physical properties of the material. These arrangements commonly take the form of cubes, rectangular solids, hexagonal solids. Etc. ... (05 Aug 1998) ...
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http://www.encyclo.co.uk/local/20973

1. The geometric pattern created by the systematic internal arrangement of atoms in a mineral. 2. The systematic internal arrangement of atoms in a mineral.
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http://www.encyclo.co.uk/local/22291

The orderly arrangement of atoms in a crystal.
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Type: Term Definitions: 1. the arrangement in space and the interatomic distances and angles of the atoms in crystals, usually determined by x-ray diffraction measurements.
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For crystalline materials, the manner in which atoms or ions are arrayed in space. It is defined in terms of the unit cell geometry and the atom positions within the cell. See also: Crystal.
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https://www.encyclo.co.uk/local/20687

The regular and repeated three-dimensional arrangement of atoms or ions in a crystal.
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https://www.encyclo.co.uk/local/22327
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