Qingsongite Dobrzhinetskaya L F, Wirth R, Yang J, Green H W, Hutcheon I D, Weber P K, Grew E S American Mineralogist 99 (2014) 764-772 Qingsongite, natural cubic boron nitride: The first boron mineral from the Earth's mantle Locality: deposit 31, Luobusa ophiolite, Yarlung Zangbu suture, southern Tibet _database_code_amcsd 0020032 3.61 3.61 3.61 90 90 90 F-43m atom x y z occ B 0 0 0 N .25 .25 .25 .9 B .25 .25 .25 .1