Difference between revisions of "Twin element"
From Online Dictionary of Crystallography
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| − | The [[direct lattice]] [[geometric element|element]] about which a [[twin operation]] is performed. | + | The [[direct lattice]] [[geometric element|element]] about which a [[twin operation]] is performed. Twins are classified accordingly in: |
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| + | * '''reflection twins''', if the twin element is a lattice plane (the '''twin plane''') | ||
| + | * '''rotation twins''', if the twin element is a lattice direction (the '''twin axis'''); | ||
| + | * '''inversion twins''', if the twin element is an inversion centre (the '''twin centre'''). | ||
==Related articles== | ==Related articles== | ||
Revision as of 01:57, 27 September 2016
Élément de maclage (Fr). Elemento di geminazione (It). 双晶要素 (Ja)
The direct lattice element about which a twin operation is performed. Twins are classified accordingly in:
- reflection twins, if the twin element is a lattice plane (the twin plane)
- rotation twins, if the twin element is a lattice direction (the twin axis);
- inversion twins, if the twin element is an inversion centre (the twin centre).
Related articles
See also
Chapter 3.3 of International Tables of Crystallography, Volume D