certainty of origin : Donated directly by the Author.
author(s) : Berthier
date of publication : 1826
source : Am.Min.(12) p.303-304
formula : =ludlamite
comments about the origin : etiquette Berthier, obtenu par Krantz puis donne a Adam, No 4553 en 1866
catalog number(s) : 17956
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP