The gossan is composed primarily of goethite, quartz (Si[O.sub.2]), beudantite (Pb[Fe.sub.3](As[O.sub.4]) (S[O.sub.4])[(OH).sub.6]), jarosite ((K,Na)[Fe.sub.3][(S[O.sub.4]).sub.2][(OH).sub.6]), plumbojarosite [(Pb[Fe.sub.6](S[O.sub.4]).sub.4][(OH).sub.12]), argentojarosite (Ag[Fe.sub.3][(S[O.sub.4]).sub.2][(OH).sub.6]), bindheimite
([Pb.sub.2][Sb.sub.2][O.sub.6] (O,OH)) and scorodite with accessory cinnabar (HgS), native Ag, Au, and cassiterite (Sn[O.sub.2]) (Boyle 1995).
Other associated minerals are: cerussite, bindheimite
, vauquelinite, mottramite and pyromorphite.
At the German locality, petterdite is associated with crocoite, cerussite, bindheimite
, pyromorphite and galena.
Associated minerals are: hausmannite, calcite, brucite, dolomite, clino-humite, kinoshitalite, copper, barytocalcite, bindheimite
is a relatively rare secondary mineral, an alteration product of boulangerite, found in the barite veins of the Andrassy I and II, and the Vilmos sections.
The mix of species is somewhat different, however, including such minerals as boulangerite, zinkenite, guettardite, robinsonite, baumhauerite, bindheimite
and bournonite which are rarer or entirely absent at Carrara.