certainty of origin : Donated directly by the Author.
author(s) : Domeyko
date of publication : 1879
source : Elementos de Mineralogia 3e Ed. p.362
formula : (Ag,Hg) var. d'amalgame (kongsbergite)
comments about the origin : coll. Bertrand No1808 etiquette Bertrand
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP