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| 3-D Periodic array of atoms. |
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| Long range order and periodicity of atoms. |
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| An infinite regular repetition in space of identical structural untis |
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| Group of atoms, ions, or molecules associated with each lattice point. |
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| A regular periodic arrangement of points in space. |
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| A small repetitive volume that forms the complete lattice |
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| Dimensions of the unit cell |
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| Dimensions of the unit cell and the associated angles between the axes |
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| Lattice constants expressed in unit cell dimensions |
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| Parallelpiped defined by primitive axes |
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| Lattice sites with fully identical surroundings |
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| Number of nearest neighbors |
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| Material lacking long-range order, glassy |
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| A material that can exist in more than one crystalline form |
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| Another name for Polymorphism |
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| scheme by which crystals are classified according to unit cell geometry |
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| Set of three integers that designate crystallographic planes |
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| The fraction of space filled by atoms within a particular crystal structure |
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