Bell, D. R., Schulze, D. J., Read, G. H., Mattioli, G. S., Shimizu, N., Moore, R. O., & Gurney, J. J. (1995). Geochemistry of Cr-poor megacrysts from the Lace (Group II) kimberlite, South Africa. International Kimberlite Conference: Extended Abstracts, 6(1), 52–54. https://doi.org/10.29173/ikc1778