TERMIUM Plus®

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CHARBON MIROITANT [1 record]

Record 1 2007-03-27

English

Subject field(s)
  • Characteristics of Coal
DEF

A coal, so called on account of its brilliant metallic colors.

CONT

Miners occasionally find coal streaked with iridescent blues and reds. Such coal has aptly been called "peacock coal" because the colors resemble those of a peacock's tail plumage. Peacock coal is not a distinct variety. The coloring is a surface effect that usually does not last long after the coal is exposed. ... The film causing peacock colors is usually iron oxide deposited in fine cracks and pores in the coal by sulfur dioxide ...

French

Domaine(s)
  • Caractéristiques des charbons
OBS

iridescent : Qui a des reflets irisés.

OBS

irisé : Qui prend les couleurs du prisme.

OBS

Tout objet dont la couleur varie avec l'orientation de la lumière est appelé iridescent. Ce phénomène fréquent dans la nature se retrouve chez certains animaux comme les insectes, les oiseaux ou les poissons : vous avez sans doute remarqué les couleurs changeantes des poissons rouges ou des plumes du paon.

Key term(s)
  • charbon miroitant

Spanish

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