argentojarosite

argentojarosite

[är‚jen·tō′jär·ə‚sīt]
(mineralogy)
AgFe3(SO4)2(OH)6 A yellow or brownish mineral consisting of basic silver ferric sulfate.
References in periodicals archive ?
Within the oxidized zones, the primary sulfide minerals were commonly converted to limonite, pyrolusite, cerussite, anglesite, argentojarosite and plumbojarosite (basic sulfates of Fe), and native silver, with traces of malachite and azurite.
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).
Hydronium jarosite is probably also present, and perhaps even argentojarosite (thought by mining engineers to be the main ore mineral at a new operation on the east slope).