author(s) : Harada, Nagashima, Nakao and Kato
date of publication : 1971
source : Am.Min.(56) p.1507-1518
formula : Ca10(SiO4)3 (SO4)3 (OH,F,Cl)2
comments about the origin : Kato 1974
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP