Twin index

From Online Dictionary of Crystallography

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<Font color="black"> Indice di geminazione </Font> (''It'')
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<Font color="blue"> Indice de macle </Font> (''Fr''). <Font color="black"> Indice di geminazione </Font> (''It'')
= Twin index =
= Twin index =
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A [[twinning]] operation overlaps both the direct and reciprocal lattices of the individuals that form a twin; consequently, the nodes of the individual lattices are overlapped (restored) to some extent ([[twinning (effects of)]]. The reciprocal ''n'' of the fraction 1/''n'' of (quasi)restored nodes is called ''twin index''
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A [[twinning]] operation overlaps both the direct and reciprocal lattices of the individuals that form a twin; consequently, the nodes of the individual lattices are overlapped (restored) to some extent ([[twinning (effects of)]]). The reciprocal ''n'' of the fraction 1/''n'' of (quasi)restored nodes is called ''twin index''

Revision as of 16:06, 21 April 2006

Indice de macle (Fr). Indice di geminazione (It)


Twin index

A twinning operation overlaps both the direct and reciprocal lattices of the individuals that form a twin; consequently, the nodes of the individual lattices are overlapped (restored) to some extent (twinning (effects of)). The reciprocal n of the fraction 1/n of (quasi)restored nodes is called twin index