David K. Joyce

Cobalt/Gowganda Area -Old Pieces

Here are some excellent slices of high grade ore that date back mostly from the early 1900's.

All prices in Canadian dollars. For payment in US$, deduct 18% or multiply by 0.82.

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

Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #10014
  • Silver, Arsenides
  • 11.6x8.2x2.2 cm
  • Largest Crystal Size: n/a
  • $80.00
  • Cobalt
    Ontario, Canada
  • A nice specimen of fresh, unaltered high grade silver ore from the Cobalt Camp. Unfortunately, I do not know which mine it was from, just Cobalt. Sawn on one side only.
Silver, Safflorite, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #10015
  • Silver, Safflorite, Arsenides
  • 10.7x10.2x0.7 cm
  • Largest Crystal Size: n/a
  • $85.00
  • O'Brien Mine
  • Cobalt
    Ontario, Canada
  • This is a slice of high-grade ore from near surface. The arsenides have been oxidized a little bit to the extent that there is some fibrous, primary erythrite on the piece. It has a very nice dendritic pattern to it. Safflorite was determined by x-ray diffraction. Nice piece!
Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #10017
  • Silver, Arsenides
  • 12.5x8.0x0.6 cm
  • Largest Crystal Size: 25mm
  • $75.00
  • Cobalt
    Ontario, Canada
  • A slice of rich, fresh(on-oxidized) high grade silver showing very good dendritic structure. Looks great!
Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #10018
  • Silver, Arsenides
  • 13.2x8.2x0.5 cm
  • Largest Crystal Size: 35mm
  • $75.00
  • Cobalt
    Ontario, Canada
  • Beautifully-shaped dendrites of arsenide-coated silver cut through the calcite matrix of this specimen along with some veinlets of pure native silver. Beautiful slice of high-grade silver-arsenide mineralization from the Cobalt Camp.
Silver, NickelineCobalt/Gowganda Area -Old Pieces
  • Item #11154
  • Silver, Nickeline
  • 15.2x13.0x0.8 cm
  • Largest Crystal Size: n/a
  • $150.00
  • Larose Mine
  • Cobalt
    Ontario, Canada
  • A slice of absoutely high-grade, silver mixed with, mostly, massive nickeline along with some calcite. Sorry, I do not know the exact mine. Very dense! Representative of the best of Cobalt high-grade.
Silver, NickelineCobalt/Gowganda Area -Old Pieces
  • Item #11152
  • Silver, Nickeline
  • 13.6x13.5x0.7 cm
  • Largest Crystal Size: n/a
  • $150.00
  • Larose Mine
  • Cobalt
    Ontario, Canada
  • A slice of absoutely high-grade, silver mixed with, mostly, massive nickeline along with some dolomite. Sorry, I do not know the exact mine. Very dense! Very nice piece!
Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #11138
  • Silver, Arsenides
  • 13.3x9.0x0.6 cm
  • Largest Crystal Size: 45mm
  • $75.00
  • Cobalt
    Ontario, Canada
  • Excellent, elongated dendrites of arsenide-coated silver course through this calcite matrix. As well as the dendritic silver, there are thick and thin veinlets of bright silver in this slice of high-grade, as well.
Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #11140
  • Silver, Arsenides
  • 13.0x10.2x0.5 cm
  • Largest Crystal Size: 40mm
  • $75.00
  • Cobalt
    Ontario, Canada
  • A superb slice of high grade silver that shows veinlets of bright silver and very well formed dendritic silver coated by arsenides. Beautiful and interesting!
Safflorite, ErythriteCobalt/Gowganda Area -Old Pieces
  • 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?
Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #22882
  • Silver, Arsenides
  • 12.0x9.5x7.0 cm
  • Largest Crystal Size: n/a
  • $425.00
  • O'Brien Mine
  • Cobalt
    Ontario, Canada
  • Rich, high-grade ore consisting of dendritic silver and veinlets of silver in slightly ozidized arsenides. This specimen originally belonged to J.B. O'Brien. Original of old label accompanies it, if you'd like it. :)
Silver, ArsenidesCobalt/Gowganda Area -Old Pieces
  • Item #22881
  • Silver, Arsenides
  • 11.8x11.2x2.2 cm
  • Largest Crystal Size: n/a
  • $140.00
  • O'Brien Mine
  • Cobalt
    Ontario, Canada
  • A thick slice of high-grade or consisting of rich, dendritic native silver and veinlets of native silver in partly oxidized ore. The was surface or, mined back in the day and has been sawn off of a chunk that was once owned by J.B. O'Brien. Copy of old label accompanies, if you wish. Great piece!