certainty of origin : Holotype.
author(s) : Bertrand
date of publication : 1882
source : Bull.Soc.Fr.Min.Crist.(5) p.90
formula : Pb(SeO3)
comments about the origin : etiquette Sorbonne No M56
catalog number(s) : 12190
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP