author(s) : Frondel and Strunz
date of publication : 1960
source : Neues Jahrb.Min.Monatsch. p.132
formula : Pb3GeO2(SO4)2 (OH)2
comments about the origin : Strunz
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP