TERMIUM Plus®

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STRUCTURELESS [1 record]

Record 1 2009-05-04

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

Said of rocks and minerals having no internal crystalline structure.

CONT

Volcanic glass is usually amorphous.

CONT

Phosphorites may be pelletal, nodular, or structureless ...

OBS

As opposed to "crystalline."

OBS

structureless: term used at Natural Resources Canada - Earth Sciences Sector.

PHR

Strutureless sandstone.

French

Domaine(s)
  • Pétrographie
  • Minéralogie
DEF

Se dit des roches et minéraux ne présentant pas d'état cristallin, c'est-à-dire sans structure interne ordonnée.

CONT

Les phosphorites peuvent être en boulettes, en nodules, ou dépourvues de structure [...]

CONT

L'état solide amorphe [...] est [...] le reflet de l'arrangement quelconque des billes. La structure est désordonnée.

OBS

amorphe : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Petrografía
  • Mineralogía
DEF

Dícese del mineral cuyos átomos se hallan reunidos sin formar ninguna red cristalina.

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