TERMIUM Plus®

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

alum schist [1 record]

Record 1 2001-02-27

English

Subject field(s)
  • Geochemistry
  • Petrography
  • Bauxite Mining
DEF

An argillaceous, often carbonaceous, rock impregnated with alum, originally containing iron sulfide (pyrite, marcasite) which, when decomposed, formed sulfuric acid that reacted with the aluminous and potassic material of the rock to produce aluminum sulfates.

French

Domaine(s)
  • Géochimie
  • Pétrographie
  • Mines de bauxite
CONT

Les schistes alunifères contiennent de l'alun provenant en partie de la décomposition de la pyrite. Ils peuvent être employés à l'amendement des vignobles, d'où le nom d'ampélites [...] donné à certains d'entre eux.

CONT

L'argile alunifère est riche en sulfure de fer et en matières charbonneuses; par grillage elle donne de l'alun, d'où le nom qu'on lui a donné.

Spanish

Campo(s) temático(s)
  • Geoquímica
  • Petrografía
  • Minas de bauxita
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