author(s) : Eugster
date of publication : 1967
source : Science,(157) p.1177-1180
formula : Na2Si22O41(OH)8 6H2O
comments about the origin : 1) Eugster par Maglione 1971 (cotype)
. 2) Eugster 1968 (auteur) <Catalog number : 24119>
catalog number(s) : 24119
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP