TERMIUM Plus®

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

MGAL2O4 [2 records]

Record 1 2011-04-21

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
MgAl2O4
formula, see observation
Mg(Al2O4)
formula, see observation
OBS

Chemical formula: MgAl2O4

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
MgAl2O4
formula, see observation
Mg(Al2O4)
formula, see observation
DEF

Composé type du groupe des spinelles.

OBS

Formule chimique : MgAl2O4

Spanish

Save record 1

Record 2 2010-09-22

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
MgAl2O4
formula, see observation
DEF

A mineral: MgAl2O4.

OBS

The magnesium may be replaced in part by ferrous iron, and the aluminum by ferric iron. Spinel has great hardness, usually forms octahedral crystals (isometric system), varies widely in color (from colorless ... to black), and is used as a gemstone. It occurs typically as products of contact metamorphism of impure dolomitic limestones, and less commonly as an accessory mineral of basic igneous rocks; it also occurs in alluvial deposits.

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
MgAl2O4
formula, see observation
DEF

[...] aluminate de magnésium du système cristallin cubique, se présentant en cristaux octaédriques souvent maclés, à éclat vitreux.

OBS

Comme [...] les spinelles au sens large, ce sont des corps à faciès octaédriques quand ils sont bien cristallisés; [...] Les alumineux, ceux de cette famille, sont généralement transparents, souvent colorés [...], durs, d = 7,5 à 8, et de densité de 3,55 [...], indice variant autour de 1,8 donnant un bel éclat vitreux.

OBS

Formule chimique : MgAl2O4

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
MgAl2O4
formula, see observation
DEF

Aluminato de magnesio [...] que cristaliza en el sistema octaédrico; sus cristales, de brillo vítreo [...] tienen aplicaciones en joyería [...].

Save record 2

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