Min. [Named by Silliman from its locality, Unionville, Pennsylvania.] = ZOISITE.
1849. B. Silliman, in Amer. Jrnl. Sci. & Arts, Ser. II. VIII. 384. Unionite … in general appearance … somewhat resembles scapolite or spodumene.
1855. Orr’s Circ. Sci., Geol., etc., 521. Antitomus Felspar, Soda Spodumene, Unionite.
