author(s) : Erd, Mc Allister and Vlisidis
date of publication : 1970
source : Am.Min.(55) p.349
formula : Ca5(MgB4O5(OH)4 )6 18H2O ?
comments about the origin : Erd 1980 ("collected by R.C.Erd 20 november 1974")
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP