certainty of origin : Donated directly by the Author.
author(s) : Lacroix
date of publication : 1910
source : Mineralogie de la France (4) p.306
formula : spinelle + Fe
comments about the origin : Museum d'Histoire Naturelle 1963 (coll.Museum No82120)
catalog number(s) : 10935
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP