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Gahnite

Gahnite
  • Translations : Gahnit, Gahnita, Ганит
  • Synonym : Automalite, Automolite, Automolith, Dysluite, Fahlunite, Spinelle zincifère, Zinc spinel
  • Etymology : Name given in honour of Swedish chemist and mineralogist Johan Gottlieb Gahn (1745 - 1818)
  • Discovery: 1807 by Baron Karl Marie Ehrenbert von Moll
  • Type localityFalun mine, Falun, Dalarna, Sweden

To learn more about the mineralogy of Gahnite, see Mindat.org->

Gemological data

  • Chemical formula : ZnAl2O4
  • Hardness (Mohs) : 7 ,5 - 8
  • Density : 4.62
  • Refractive index : 1.79–1.80
  • Crystal system : Cubique
  • Group : Spinelle

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