certainty of origin : Donated directly by the Author.
author(s) : Frondel
date of publication : 1955
source : Am.Min.(40) p.828
formula : messelite
comments about the origin : Frondel 1963 No107184
catalog number(s) : 18106
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP