certainty of origin : Donated directly by the Author.
author(s) : Breithaupt
date of publication : 1863
source : Berg und Huttenmaennische Zeitung, Freiburg (22)p.27
formula : marmatite
comments about the origin : coll.Adam No5000 (de Descloizeaux) obtenu par Breithaupt en 1863
catalog number(s) : 7339
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP