Citation: Meyer, N.A.; Wenz, M.D.; Walsh, J.P.S.; Jacobsen, S.D.; Locock, A.J.; Harris, J.W. (2019). Goldschmidtite, (K,REE,Sr)(Nb,Cr)O3: A new perovskite supergroup mineral found in diamond from Koffefontein, South Africa. American Mineralogist, 104, pp. 1345-1350.