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regions. In such cases, crystallinity is usually specified as a percentage of the volume of the material that is crystalline. Even within materials that are completely crystalline, however, the degree of structural perfection can vary. For instance, most metallic
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128:, represent an intermediate case, having order over short distances (a few atomic or molecular spacings) but not over longer distances.
172:(so they have no grain boundaries), are nearly free of dislocations, and have precisely controlled concentrations of defect atoms.
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are crystalline, but they usually comprise many independent crystalline regions (grains or
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rocks are partially crystalline, with crystals embedded in an amorphous or glassy matrix;
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Geologists describe four qualitative levels of crystallinity:
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produced for semiconductor electronics; these are large
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43:but its sources remain unclear because it lacks
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152:) in various orientations separated by
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86:Degree of structural order in a solid
175:Crystallinity can be measured using
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156:; furthermore, they contain other
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194:rocks are completely crystalline;
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228:Oxford dictionary of science
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206:rocks are partially glassy;
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131:Many materials, such as
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258:Physical quantities
183:Rock crystallinity
31:list of references
177:x-ray diffraction
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263:Phases of matter
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50:Please help
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210:holohyaline
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56:introducing
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253:Crystals
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116:. In an
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96:. In a
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