zygaditehttp://www.oed.com/dictionary/zygadite_n%3Ftab%3Dmeaning_and_usezygadite, n.
First published 1921; not fully revised

zygaditenoun

Mineralogy.
  1. 1861–
    A variety of albite, occurring in tabular twin crystals, of a yellowish-white or reddish colour.
    1. 1861
      H. W. Bristow, Glossary of Mineralogy
    2. 1886
      Zygadite..occurs in druses in the slate of St. Andreasberg in association with quartz and sphalerite.
      Journal of Chemical Society vol. 50 518

zygadite, n. was first published in 1921; not fully revised.

zygadite, n. was last modified in March 2025.