author(s) : Smith, Simons and Vlisidis
date of publication : 1953
source : Am.Min.(38) p.1218-1224
formula : PbAl3(SO4AsO4)(OH)6
comments about the origin : Vlisidis 1954
catalog number(s) : 2156
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP