author(s) : Milton and Ingram
date of publication : 1963
source : cite sans reference dans Strunz 1966 Min.Tabellen 4e Ed. p.214
formula : Na2Ca(CO3)2
comments about the origin : Milton 1974
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP