author(s) : Kucharenko, Orlowa and Bulach
date of publication : 1968
source : "The Caledonian ultrabasic rocks and carbonatites of the Kola peninsula and northern Karelia" Izd. "Neda" Moscou p.479-481
formula : (Na,K)Ca(Si,Al)4 (O,OH)10 1,5H2O
comments about the origin : Nefedov 1965
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP