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Edenite

  • Translations : Edenit, Edenita, 浅闪石, Эденит
  • Etymology : Of the name of the locality typify Edenville, Orange Co ., New York, the USA.
  • Discovery: 1831 by Charles Upham Shepard
  • Type localityEdenville, Orange Co., New York, USA.

To know more about the mineralogy of Edenite, see Mindat.org->

Gemological data

  • Chemical formula : {Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
  • Hardness (Mohs) : 5 - 6
  • Density : 3.05 - 3.37
  • Refractive index : nα = 1.606 - 1.649 nβ = 1.617 - 1.660 nγ = 1.631 - 1.672
  • Birefingence : 0.025
  • Crystal system : Monoclinic
  • Group : Amphibole
  • Mineralogical Class : Inosilicates

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