When the thin film was dried at 40[degrees]C, chlorargyrite
(AgCl), silver oxide ([Ag.sub.2]O), and other structures were observed (Table 3).
Colorless, transparent, complex crystals (to 2.5 mm) of anglesite occur with brochantite, caledonite, chlorargyrite
and linarite in cavities at the Reward mine.
It would be nice to think so, but it was instead probably iron-stained native silver and chlorargyrite
(Wallace and Hall-Wallace, 2003).
Almost certainly the ore was chlorargyrite
and some minor native silver.
Essaraj (1999) mentioned chlorargyrite
in the course of her studies of silver-bearing minerals from the Anti-Atlas Mountains.
Dave Bunk showed some of the finest extant Colorado specimens of silver species; Wayne and Dona Leicht contributed a sumptuous assortment of large specimens of worldwide silver-bearers; noted silver-species collector Terry Wallace showed off "Spanish Colonial Silver Minerals"; and Bill and Carol Smith repeated the outstanding case on this theme that they've shown before, heavy on great old-timers like German and Chilean proustite, Kongsberg wire silver, Broken Hill chlorargyrite
Vein Minerals Adamite Goethite Arsenopyrite Gold Austinite Hemimorphite Barite Malachite Beudantite Mimetite Calcite Smithsonite Cerussite Sphalerite Chalcopyrite Plumbojarosite Chlorargyrite
Pyrite Chrysocolla Rosasite Conichalcite Tetrahedrite Fluorite Willemite Galena Wulfenite ACKNOWLEDGMENTS
Taylor's (1824) translation of select passages from Alexander Humboldt's journeys to Mexico in 1800-1803 mentions Fresnillo as a region with mines that are "feebly wrought," and that the bill is traversed by an innumerable quantity of veins, rich in gray and green hornsilver (chlorargyrite
Arseniosiderite appears as brown to golden yellow platy crystals forming the matrix for chlorargyrite
and several arsenates.
Associated minerals are: pharmacosiderite, olivenite, conichalcite, jarosite, arseniosiderite, scorodite, malachite, azurite, chlorargyrite
, mixite and lavendulan.
In the oxidized zone native silver and some chlorargyrite
were found, and many fine specimens of the former were collected a century ago.
Associated minerals are: a second new selenite, [Pb.sub.4]Cu[Cl.sub.3]-[(Se[O.sub.3]).sub.3](OH), chalcomenite (up to 2 cm long!), atacamite, pseudoboleite, chlorargyrite
, olsacherite, mandarinoite, schmiederite, francisite, clausthalite-galena, galena, covellite and arsenopyrite.