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Difference between revisions of "Twinning by pseudomerohedry"

From Online Dictionary of Crystallography

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<Font color="blue"> Maclage par pseudomériédrie </Font> (''Fr''). <Font color="green"> Macla por pseudomeriedria </Font> (''Sp''). <Font color="black"> Geminazione per pseudomeroedria</Font> (''It''). <Font color="purple">偽欠面双晶</Font> (''Ja'').
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<font color="blue">Maclage par pseudomériédrie</font> (''Fr''). <font color="red">Pseudomeroedrische Verzwillingung</font> (''Ge''). <font color="black">Geminazione per pseudomeroedria</font> (''It''). <font color="purple">擬欠面双晶</font> (''Ja''). <font color="green">Macla por seudomeroedría</font> (''Sp'').
  
  
A lattice is said to be pseudosymmetric if at least a lattice row or/and a lattice plane approximately correspond to elements of symmetry; these elements can act as twinning operators (''e.g.'' a monoclinic lattice with its oblique angle ''close'' to 90° is pseudo-orthorhombic and thus shows two pseudo twofold axes and two pseudo mirror planes).
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A lattice is said to be pseudosymmetric if at least a lattice row or/and a lattice plane approximately correspond to symmetry elements for the lattice; these elements can act as twin elements (''e.g.'' a monoclinic lattice with its oblique angle ''close'' to 90° is pseudo-orthorhombic and thus shows two pseudo twofold axes and two pseudo mirror planes).
  
 
== See also ==
 
== See also ==

Latest revision as of 14:59, 15 April 2021

Maclage par pseudomériédrie (Fr). Pseudomeroedrische Verzwillingung (Ge). Geminazione per pseudomeroedria (It). 擬欠面双晶 (Ja). Macla por seudomeroedría (Sp).


A lattice is said to be pseudosymmetric if at least a lattice row or/and a lattice plane approximately correspond to symmetry elements for the lattice; these elements can act as twin elements (e.g. a monoclinic lattice with its oblique angle close to 90° is pseudo-orthorhombic and thus shows two pseudo twofold axes and two pseudo mirror planes).

See also

  • Chapter 3.3 of International Tables for Crystallography, Volume D