certainty of origin : Holotype.
author(s) : Gaudefroy, Jouravsky and Permingeat
date of publication : 1963
source : Bull.Soc.Fr.Min.Crist.(86) p.359-367
formula : CaMn2O4
comments about the origin : Permingeat 1963
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP