Magnesiohoegbomite-_2N_4S : A new polysome from the central Sor Rondane Mountains, East Antarctica - Shimura, Toshiaki; Akai, Junji; Lazic, Biljana; Armbruster, Thomas; Shimizu, Masaaki; Kamei, Atsushi; Tsukada, Kazuhiro; 大和田, 正明; Yuhara, Masaki (American Mineralogist, 2012)