Difference between revisions of "Twinning by pseudomerohedry"
From Online Dictionary of Crystallography
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− | = Twinning by pseudomerohedry = | + | = [[Twinning]] by pseudomerohedry = |
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). | 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). |
Revision as of 14:59, 21 April 2006
Geminazione per pseudomeroedria(It)
Twinning by pseudomerohedry
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).