author(s) : Moore and Smith
date of publication : 1967
source : Ark.Min.Geol.(4) p.395
formula : MnSn(OH)6
comments about the origin : etiquette Naturhistoriska Riksmuseet Stockholm, Moore 1967
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP