certainty of origin : Holotype.
author(s) : Francotte, Moreau, Levy and Ottenburgs
date of publication : 1965
source : Bull.Soc.Fr.Min.Crist.(88) p.432-437
formula : Cu2(Fe,Zn)GeS4
comments about the origin : Ech.Lab.Louvain 1964
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP