author(s) : Moore
date of publication : 1967
source : Canad.Min.(9) p.301
formula : (Pb,Ca,Ba)Ca2Fe(Mg,Fe)4 (OH)4 (Si(O,OH)4 Si2O6)2
comments about the origin : Moore 1966
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP