Kuehner, S.M., A.J. Irving, and H.E. O'Brien. 2003. “A Kalborsite-Pitiglianoite-Kalsilite-Shcherbakovite-Barytolamprophyllite-Wadeite-Bearing Lamproitic Dike from the Northern Highwood Mountains, Montana, USA”. International Kimberlite Conference: Extended Abstracts 8 (June). https://doi.org/10.29173/ikc3005.