Heudingerite or Haidingerite: How To spell?
The word Heudingerite is misspelled against Haidingerite, a noun meaning "A mineral consisting of the arseniate of lime; -- so named in honor of W. Haidinger, of Vienna."
The word Heudingerite is misspelled against Haidingerite, a noun meaning "A mineral consisting of the arseniate of lime; -- so named in honor of W. Haidinger, of Vienna."