O'Brien, H.E., and M. Tyni. “Mineralogy and Geochemistry of Kimberlites and Related Rocks from Finland”. International Kimberlite Conference: Extended Abstracts 7, no. 1 (April 17, 1998): 643–645. Accessed December 22, 2024. https://ikcabstracts.com/index.php/ikc/article/view/2832.