certainty of origin : Donated directly by the Author.
author(s) : Michaelson
date of publication : 1863
source : Journ.Prakt.Chem.(90) p.107
formula : var.de diopside
comments about the origin : coll.generale NoM3041(h11) obtenu par Michaelson
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP