TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

CRYSTAL SYSTEMS [1 record]

Record 1 2011-07-28

English

Subject field(s)
  • Mineralogy
DEF

One of six (or seven) categories of a crystal according to the symmetry of its faces and its dimensional equivalences in the lattices or axes of reference. These include: cubic or isometric, hexagonal, tetragonal, orthorhombic, trigonal or rhombohedral, monoclinic, and triclinic.

Key term(s)
  • crystal systems

French

Domaine(s)
  • Minéralogie
OBS

Les cristaux se ramènent à 7 systèmes ou formes primitives déterminées par les faces du cristal se coupant suivant des angles fixes. Ces systèmes présentent des plans et des axes de symétrie également bien définis et ayant entre eux des relations précises. On distingue les systèmes cubique, quadratique, hexagonal, orthorhombique, rhomboédrique, monoclinique et triclinique.

Key term(s)
  • systèmes cristallins

Spanish

Campo(s) temático(s)
  • Mineralogía
CONT

La combinación de todos los elementos posibles de simetría da lugar a la existencia de 32 clases cristalinas. Éstas pueden ser agrupadas por afinidades, ya por ser iguales sus ejes y ángulos cristalográficos (singonía cristalina), ya por tener idénticos los conjuntos de ejes que permiten caracterizar a los sistemas cristalinos. Éstos son [...] siete [...]: sistema cúbico [...], sistema cuadrático o tetragonal [...], sistema ortorrómbico o, simplemente rómbico [...], sistema hexagonal [...], sistema romboédrico [...], sistema monoclínico o clinorrómbico [...], sistema triclínico, asimétrico o anórtico [...]

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