author(s) : Oswald and Crook
date of publication : 1979
source : Am.Min.(64) p.886
formula : (Cu,Mg)2 (OH)2 CO3 3H2O
comments about the origin : etiquette Garske ech.Garske 1980 "coll. by S. Oswald"
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP