David K. Joyce

Morocco, Proustite, Silver, Bouismas Mine, Zagora, Draa-Tafilalet

I have listed these specimens under "Silver" as opposed to dyscrasite or allargentum, as other sources have classified them. The silvery, metallic mineral has silver crystal structure/habit in these specimens and I have had them analysed as silver with a couple of percent of mercury. The calcite has been partially etched away to reveal the dendrites. They are GREAT specimens of SILVER!

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Item #17986 Proustite, Safflorite 8.2x5.7x2.6 cm Largest Crystal Size: 5mm $65.00 Bouismas Mine Zagora Draa-Tafilalet, Morocco This fragment of solid safflorite shows openings in the safflorite, lined with bladed crystals of that mineral. As well, there are some ruby-red, gemmy proustite crystals. Interesting and different piece!	Item #29553 Proustite, Xanthoconite 10.5x10.1x5.8 cm Largest Crystal Size: 45mm $75.00 Bouismas Mine Zagora, Draa-Tafilalet Morocco This calcite vein, exposed on top of pyritized rock matrix shows bright red, "ruby silver" crystals. They are very gemmy, red proustite crystals, squished into this very narrow vein. As well, there is one very sharp, orange xanthoconite crystal. Extra postage required. A bit heavy! Rich!	Item #20557 Silver, Sphalerite 6.6x6.2x2.5 cm Largest Crystal Size: sil-10mm networks, sp-4mm $75.00 Bouismas Mine Zagora Draa-Tafilalet, Morocco Here is a different one! Some of the calcite has been removed from this specimen to reveal well, formed, black sphalerite crystals, with meshes of small dendritic silver crystals between them. Gorgeous under the microscope! Rich specimen, too!	Item #29556 Proustite, Xanthoconite 6.8x3.5x3.3 cm Largest Crystal Size: p-2mm, x-micro $55.00 Bouismas Mine Zagora, Draa-Tafilalet Morocco This calcite vein material has a number of deep red proustite crystals on it, as well as some beautiful, yellow xanthoconite crystals. Nice xample of these two silver minerals that are paramorphs!
Item #29559 Proustite 5.1x4.1x0.9 cm Largest Crystal Size: 4mm $75.00 Bouismas Mine Zagora, Draa-Tafilalet Morocco One end of this calcite vein fragment is covered with deep, red, well formed proustite crystals. Very nice example of this particular "Ruby Silver" mineral.	Item #29560 Proustite, Arsenopyrite 9.6x4.5x2.0 cm Largest Crystal Size: 5mm $125.00 Bouismas Mine Zagora, Draa-Tafilalet Morocco Two areas of proustite and arsenopyrite crystals, together, that appear to be in dendritic habit. Perhaps they replaced native silver in this calcite vein? At least I think the darker mineral is arsenopyrite! Interesting and unusual example.