author(s) : Zak and Synecek
date of publication : 1956
source : Casopis Min.Geol.(1) No3 p.195
formula : CaBiOF(CO3)
comments about the origin : coll.Zak 1953 obtenu par Zak en 1974
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP