TERMIUM Plus®

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

FAYALITE [1 record]

Record 1 2011-05-16

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
Fe2SiO4
formula, see observation
DEF

A yellowish to black mineral ... of the olivine group.

CONT

Fayalite ... or iron olivine is dark brown or black in colour. It occurs as nodules in a volcanic rock at Fayal in the Azores, and in granite - at the Mourne Mountains in Ireland; and as small crystals in cavities in rhyolite at the Yellowstone Park, U.S.A. It is a common constituent of crystalline iron slags.

OBS

Chemical formula: Fe2SiO4

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
Fe2SiO4
formula, see observation
DEF

[Minéral du] système cristallin orthorhombique [du] groupe des péridots.

CONT

La fayalite est opaque à translucide; de couleur jaune verdâtre lumineux, elle devient brune à noire exposée à l'air. C'est le péridot ferrifère qui forme une série avec la forstérite.

OBS

Étymologie : vient de l'île Fayal (Açores).

OBS

Formule chimique : Fe2SiO4

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
Fe2SiO4
formula, see observation
DEF

Silicato de hierro [...] que cristaliza en el sistema rómbico; es un mineral entre pardo y negro, perteneciente al grupo de los olivinos o peridotos que, algunas veces, contiene manganeso, como éstos.

OBS

Fórmula química: Fe2Si O4

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