English edit

Etymology edit

This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. ? +‎ -ite

Noun edit

johannsenite

  1. (mineralogy) A monoclinic-prismatic mineral containing calcium, manganese, oxygen, and silicon.

References edit

  • David Barthelmy (1997–2024) “Johannsenite”, in Webmineral Mineralogy Database.