Qingsongite, natural cubic boron nitride: The first boron mineral from the Earth's mantle Dobrzhinetskaya, L. F. ; Wirth, R. ; Yang, J. ; Green, H. W. ; Hutcheon, I. D. ; Weber, P. K. ; Grew, E. S. Abstract Publication: American Mineralogist Pub Date: April 2014 DOI: 10.2138/am.2014.4714 Bibcode: 2014AmMin..99..764D