Definition of glaucophane in English:

Share this entry


Pronunciation: /ˈɡlɔːkəfeɪn/


[mass noun]
A bluish sodium-containing mineral of the amphibole group, found chiefly in schists and other metamorphic rocks.
Example sentences
  • The mineral glaucophane, for example, has a pleochroism scheme of colourless, lavender, and sky blue.
  • Some melange inclusions locally preserve glaucophane overprinted by actinolite.
  • Undated glaucophane schists in the suture zone in Transbaikalia confirm the operation of subduction processes.


Mid 19th century: from German Glaukophan, from Greek glaukos 'bluish-green' + -phanēs 'shining'.

For editors and proofreaders

Line breaks: glauco|phane

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.