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!

All prices in Canadian dollars. For payment in US$, deduct 20% or multiply by 0.8.

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Proustite, XanthoconiteMorocco, Proustite, Silver, Bouismas Mine, Zagora, Draa-Tafilalet
  • 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!
ProustiteMorocco, Proustite, Silver, Bouismas Mine, Zagora, Draa-Tafilalet
  • 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.
Proustite, ArsenopyriteMorocco, Proustite, Silver, Bouismas Mine, Zagora, Draa-Tafilalet
  • 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.