certainty of origin : Donated directly by the Author.
author(s) : Nordenskioeld
date of publication : 1852
source : Verz.Finl.Min.
formula : Mn2Fe2Si4O13 6H2O ?
comments about the origin : coll. Adam No446 obtenu en 1867 etiquette Riks Museum (Stockholm) (Nordenskioeld)
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP