Meyer, Henry O.A., Hsiao-ming Tsai, and John J. Gurney. 1977. “Enstatite Xenocryst Containing Coexisting Cr-Poor and Cr-Rich Garnet, Weltevreden Floors, South Africa”. International Kimberlite Conference: Extended Abstracts 2 (1):226-28. https://doi.org/10.29173/ikc1001.