delessite

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English[edit]

English Wikipedia has an article on:
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Noun[edit]

delessite (countable and uncountable, plural delessites)

  1. (mineralogy) A magnesium-rich form of chamosite that is a member of the chlorite group.
    • 1905, B. K. Emerson, “Plumose diabase and palagonite from the Holyoke trap sheet”, in Bulletin of the Geological Society of America[1], volume 16, page 105:
      Several delessites and chloropals occurring in basalts have a composition very close to that of the glass.

Further reading[edit]

  • David Barthelmy (1997–2024) “Delessite”, in Webmineral Mineralogy Database.
  • delessite”, in Mindat.org[2], Hudson Institute of Mineralogy, 2000–2024.