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ZNAL2O4 [1 record]

Record 1 2011-01-28

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
ZnAl2O4
formula, see observation
DEF

A dark green to brown or black mineral ...

CONT

Sphalerite may react with aluminosilicates to form gahnite ... at amphibolite facies and higher metamorphic grades.

OBS

[Etymology:] After Johan Gottlieb Gahn (1745-1818), Swedish mineralogist.

OBS

Chemical formula: ZnAl2O4

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
ZnAl2O4
formula, see observation
DEF

Spinelle alumino-zincifère de couleur verte ou bleue, que l'on trouve dans les gneiss et les calcaires métamorphiques en Suède, aux États-Unis, au Brésil et en Calabre (Italie).

CONT

La sphalérite peut réagir avec les aluminosilicates pour former de la gahnite [...] au faciès des amphibolites et dans des conditions de métamorphisme plus élevées.

OBS

Formule chimique : ZnAl2O4

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
ZnAl2O4
formula, see observation
DEF

Aluminato de zinc [...] que cristaliza en el sistema cúbico; es un mineral translúcido, de color verde oscuro y de brillo vítreo, perteneciente a la familia de las espinelas.

OBS

Fórmula química: ZnAl2O4

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