Grew, E.S., Chernosky, J.V., Jr., Werding, G., Abraham, K., Marquez, N. and Hinthorne, J.R., 1990. Chemistry of kornerupine and associated minerals, a wet chemical, ion microprobe, and x-ray study emphasizing Li, Be, B and F contents. Jour. Petrol., 31, 1025-1070.