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Stilbite

  • Translations : Estibilta, Stilbit, Sesmin, Stilbita, 束沸石, Десмін
  • Synonym : Desmine, Epidesmine, Garbenstilbite, Puflerite
  • Etymology : Desmine, Epidesmine, Garbenstilbite, Puflerite
  • Discovery: 1797 by Jean Claude de la Métherie

To know more about the mineralogy of the stilbite, see Mindat.org

Gemological data

  • Chemical formula : NaCa4Al8Si28O72·30(H2O)
  • Hardness (Mohs) : 3.5 - 4
  • Density : 2.18
  • Birefingence : nα = 1.479 - 1.492 nβ = 1.485 - 1.500 nγ = 1.489 - 1.505
  • Crystal system : Monoclinic

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