certainty of origin : Cotype (used for additional information).
author(s) : Lacroix
date of publication : 1920
source : Bull.Soc.Fr.Min.Crist.(43) p.69
formula : var. de hercynite
comments about the origin : Museum d'Histoire Naturelle 1973 (cotype) etiquette Lacroix
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP