author(s) : Hentschel
date of publication : 1964
source : Neues Jahrb. Min.Monatsch.(1) p.22-29
formula : Ca12Al14O33
comments about the origin : Hentschel 1965
catalog number(s) : 17933
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP