author(s) : Schemtschuschnikov and Ginzburg
date of publication : 1960
source : (Problems of Coal Petrology) Dokl.Akad.Nauk. p.93
formula : NaMg(Al,Fe)(C2O4)3 8-9H2O
comments about the origin : Musee de Leningrad 1972
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP