author(s) : Alfors, Stinson, Matthews and Pabst
date of publication : 1965
source : Am.Min.(50) p.279,314 (+Stinson and Alfors,1964 Min.Inform.Serv.Calif.Div.Mines Geol.(17) p.235)
formula : Ba2Si4O8(OH)4 4H2O
comments about the origin : Alfors 1966
catalog number(s) : 22834
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP