certainty of origin : Holotype.
author(s) : Pierrot and Schnubel
date of publication : 1972
source : Bull.Soc.Fr.Min.Crist.(95 p.365-370
formula : Ca4MgH2(AsO4)4
comments about the origin : Mission S.C.E.M. 1967 (holotype)
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP