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Clinozoïsite

Clinozoïsite
  • Translations : Clinozoisite, Clinozoisiet, Klinozoisit, Clinozoisit, Clinozoisite, Clinozoisita, Клиноцоизит, 斜黝帘石
  • Synonym : Aluminium-Epidote, Clinoepidote, Fouquéite
  • Etymology : Named in reference to the monoclinic form of its crystals and its relationship with the Zoisite.
  • Discovery: 1896 by Ernst Weinschenk
  • Type localityGösleswand (Goslerwand), Prägraten, Virgen Valley, East Tyrol, Tyrol, Austria

Clinozoisite is a variety of stone that is often found opaque and of poor quality.

The transparent quality, called "gem", is very rare and appreciated by collectors.

Clinozoisite has a chemical composition close to that of the Epidote, that is why some minerals being as much of the Epidote as of the Clinozoisite is called Clinozoisite-Epidote.

To learn more about Clinozoisite, see Mindat.org->

Gemological data

  • Chemical formula : {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
  • Hardness (Mohs) : 7
  • Density : 3.4
  • Refractive index : 1.733 - 1.768
  • Birefingence : 0.035
  • Crystal system : Monoclinic
  • Group : Epidotes
  • Mineralogical Class : Silicates

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