SKINNER, E.M.W.; CLEMENT, C.R. Mineralogical classification of southern African kimberlites. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 2, n. 1, p. 304–306, 1977. DOI: 10.29173/ikc1030. Disponível em: https://journals.library.ualberta.ca/ikcabstracts.com/index.php/ikc/article/view/1030. Acesso em: 17 jan. 2025.