Robinson, D.N., R. Ferraris, V.G. Anderson, G.M. Parker, E. Van Blerck, and D. Hart. 1998. “Colour, Morphological and Surface Textural Characteristics of the Diamonds in Venetia Kimberlites”. International Kimberlite Conference: Extended Abstracts 7 (1):737-39. https://doi.org/10.29173/ikc2866.