Antonov, A. 2008. The unknown mineral (Ca0.2Mg1.3Fe2+0.3)Si3(Ti0.3Zr1.7)O12 from the Kostomuksha lamproites/kimberlites: paragenesis and chemistry. International Kimberlite Conference: Extended Abstracts. 9, (Oct. 2008). DOI:https://doi.org/10.29173/ikc3570.