Min. [ad. G. zygadit (Breithaupt), f. Gr. ζυγάδην in pairs, f. ζυγόν yoke.] A variety of albite, occurring in tabular twin crystals, of a yellowish-white or reddish color.
1861. Bristow, Gloss. Min.
1886. Jrnl. Chem. Soc., L. 518. Zygadite … occurs in druses in the slate of St. Andreasberg in association with quartz and sphalerite.
