certainty of origin : Donated directly by the Author.
author(s) : Adam
date of publication : 1869
source : Tabl.Min. p.76
formula : wad+PbO
comments about the origin : coll.Adam No6601 et 6604
catalog number(s) : 11513,11516
This type specimen, kept in the Museum of Ecole des mines de Paris, has been indexed by Dr Guillemin.
(C) BRGM, ENSMP