Citation: Matsubara, S.; Miyawaki, R.; Kurosawa, M.; Suzuki, Y. (2003). Watatsumiite, KNa2LiMn2V2Si8O24, a new mineral from the Tanohata mine, Iwate Prefecture, Japan Locality: metamorphosed manganese ore deposit, Tanohata mine, Iwate Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 98, pp. 142-150.