Tokkoite, Charoite
Magistral'nyi area, Sirenevyi Kamen' Deposit, Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Russia
Tokkoite (brown yellowish) and charoite (lilac).
Crystalline system: Triclinic.
Genesis: in nearly segregations in alkaline massifs (LAZEBINIK, K. A.; NIKISHOVA, l. v.; LAZEBINIK, Y. D., Mineralogyia Zhurnal, v. 8, n. 3, pp. 85-89, 1986).
Associated minerals at locality: aegirine, frankamenite, microcline, miserite, quartz, and tinaksite ...