GURNEY, J.J.; HELMSTAEDT, H.H. Type IIa diamonds and their enhanced economic significance. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 10, 2012. DOI: 10.29173/ikc3692. Disponível em: https://ikcabstracts.com/index.php/ikc/article/view/3692. Acesso em: 25 apr. 2024.