Kornprobst, J., Piboule, M., Boudeulle, M., & Roux, L. (1982). Corundum-bearing garnet pyroxenites at Beni-Bousera (Morocco): an exceptionnally al-rich clinopyroxene from “grospydites” associated with ultramafic rocks. International Kimberlite Conference: Extended Abstracts, 3, 257–259. https://doi.org/10.29173/ikc2373