author(s) : Frank-Kamenetskii, Logvinenko and Drits
date of publication : 1963
source : Zap.Vses.Min.Obsch.(92) p.560
formula : interstratifie chlorite montmorillonite
comments about the origin : Sudo 1970
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP