David K. Joyce Minerals

Cobalt/Gowganda Area, Old Collection

Here are specimens from an old collection assembled prior to 1923. Each specimen is labelled with Handwritten tag, tied to the specimen with string, stating the minerals and origin. Pretty cool! Unfortunately, the collector was NOT a mineralogical whiz since many of the mineral ID's are incorrect. Interestingly, many of the locations are unusual mines and prospects rarely seen available and I believe the locations would be correct. Interesting pieces!

All prices in Canadian dollars. For payment in US$, deduct 19% or multiply by 0.81.

Click on any of the following thumbnails to view a larger image of the specimen.

Safflorite, Nickeline, Erythrite, AnnabergiteCobalt/Gowganda Area, Old Collection
  • Item #19417
  • Safflorite, Nickeline, Erythrite, Annabergite
  • 9.0x5.6x4.2 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Cobal
    Ontario, Canada
  • A rich specimen of cobalt and nickel arsenides with lots of zones of erythrite and annabergite laced throughout. The erythrite occurs in open areas and has tiny crystals while the annabergite is massive and fills the voids. Old surface mineralization! Sorry, the tag does not state the exact location.
Safflorite, ErythriteCobalt/Gowganda Area, Old Collection
  • Item #19423
  • Safflorite, Erythrite
  • 6.0x4.8x2.1 cm
  • Largest Crystal Size: n/a
  • $45.00
  • Cobalt
    Ontario, Canada
  • A rich arsenide specimen showing safflorite and other arsenides in dolomite, the arsenides encrusted with erythrite and other arsenic oxides. The tag say "Arsenic" although I do not see it unless he was referring to the small botryoids of arsenic oxide?
Nickeline, SilverCobalt/Gowganda Area, Old Collection
  • Item #19425
  • Nickeline, Silver
  • 6.3x5.3x6.0 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Mappes-Johnson Mine
  • Elk Lake
    Ontario, Canada
  • Very rich heavy globular nickeline in calcite associated with small veinlets of native silver plus a grey arsenide coating the nickeline. Dense!!
Chalcopyrite, HematiteCobalt/Gowganda Area, Old Collection
  • Item #19429
  • Chalcopyrite, Hematite
  • 5.0x4.0x2.1 cm
  • Largest Crystal Size: n/a
  • $45.00
  • Mappes-Johnson Mine
  • Elk Lake
    Ontario, Canada
  • This piece is composed of mostly chalcopyrite and specular hematite with some chlorite and red-tinted dolomite. The collector, obviously thought the hematite was sphalerite by the writing on the label.
Safflorite, Nickel and Cobalt Arsenides, Erythrite, AnnabergiteCobalt/Gowganda Area, Old Collection
  • Item #19380
  • Safflorite, Nickel and Cobalt Arsenides, Erythrite, Annabergite
  • 10.5x7.0x6.5 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Cobalt
    Ontario, Canada
  • Cobalt and Arsenide mineralization is penetrated by green annabergite and pink erythrite. The tag mentions niccolite but I cannot see any. I see other rich arsenide mineralization. Interestingly, in the wall rock there are vugs of quartz crystals.
Safflorite, etcCobalt/Gowganda Area, Old Collection
  • Item #19382
  • Safflorite, etc
  • 11.4x9.1x4.6 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Silver Queen Mine
  • Cobalt
    Ontario, Canada
  • The tag accompanying this specimen notes that it is a specimen of "Smaltite". Smaltite was the word used for cobalt arsenide in the old days. Eventually, they figured out that it is actually a mixture of cobalt arsenides and not a single mineral. I actually don't know what this specimen is made of but from observation, it appears to be a mixture of different cobalt arsenides. "Smaltite" from a great old mine!
Erythrite, ArsenidesCobalt/Gowganda Area, Old Collection
  • Item #19388
  • Erythrite, Arsenides
  • 8.0x8.0x9.0 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Anderson-Sutherland Mine, Montreal River
  • Cobalt
    Ontario, Canada
  • A vein of cobalt arsenide(s) cuts through a fine grained rock, in this specimen. The vein is encrusted with erythrite! Very unusual location.