Named for Simeon Jančev (born 1942), mineralogist and professor at Saints Cyril and Methodius University, Skopje, Macedonia.
Vanadium analogue of asisite.
Approved pending publication - 2017.
Citation: Chukanov, N.V., Nekrasova, D.O., Siidra, O.I., Polekhovsky, Y.S. and Pekov, I.V. (2017) Janchevite, IMA 2017-079. CNMNC Newsletter No. 40, December 2017, page 1581; Mineralogical Magazine: 81: 1577–1581.
