David K. Joyce

Cobalt/Gowganda, Ontario -Various Species

Although Cobalt was famous for the vast quantities of silver mined there over many decades, many other minerals, some fairly rare, have been found there in impressive specimens, confirmed by electron microprobe analysis. Here are some.

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

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

Silver, SkutteruditeCobalt/Gowganda, Ontario -Various Species
  • Item #20850
  • Silver, Skutterudite
  • 8.5x6.2x4.8 cm
  • Largest Crystal Size: n/a
  • $140.00
  • Beaver Mine
  • Cobalt
    Ontario, Canada
  • This specimen is mostly composed of bladed crystals of safflorite arranged in hemispherical aggregates, TOTALLY laced through with native silver, which sticks out as hacly barbs all over. Some tiny skutterudite crystals here and there on the safflorite. VERY high grade! Heavy and nice!
Safflorite, NickelineCobalt/Gowganda, Ontario -Various Species
  • Item #21512
  • Safflorite, Nickeline
  • 8.3x5.3x5.7 cm
  • Largest Crystal Size: 1mm
  • $85.00
  • Nipissing 73 Mine
  • Cobalt
    Ontario, Canada
  • This is an interesting, different one! Very elongated lobes of nickeline are coated with silver-grey safflorite crystals. The lobes are mostly safflorite but have narrow, hollow interiors that may have been filled with silver or some other mineral, at some time. The nickeline would then be some sort of pseudomorph. Looks great, anyway!
Lollingite, QuartzCobalt/Gowganda, Ontario -Various Species
  • Item #22017
  • Lollingite, Quartz
  • 3.4x3.6x4.6 cm
  • Largest Crystal Size: 2mm
  • $40.00
  • O'Brien Mine
  • Cobalt
    Ontario, Canada
  • The top of this rock matrix is covered with a botryoidal arsenide, possibly lollingite or safflorite that is in turn, thickly sprinkled with 1-2mm lollingite crystals. Interesting AND looks good!
Kainosite-(Y), Safflorite, ArsenopyriteCobalt/Gowganda, Ontario -Various Species
  • Item #27088
  • Kainosite-(Y), Safflorite, Arsenopyrite
  • 4.1x4.1x4.0 cm
  • Largest Crystal Size: micro
  • $65.00
  • Cobalt Lode Mine
  • Cobalt
    Ontario, Canada
  • This specimen has a number of tiny kainosite-(Y) crystals nestled amongst arsenide crystals and botryoids, including the exquisite cluster featured in the photograph here. My last one. A rare mineral from unusually mineralized silver-cobalt veins!
Skutterudite, Cobaltite (Dendrite)Cobalt/Gowganda, Ontario -Various Species
  • Item #22521
  • Skutterudite, Cobaltite (Dendrite)
  • 10.6x8.0x3.8 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Cobalt Lode Mine
  • Cobalt
    Ontario, Canada
  • THIS is a cool piece! You can see the thick bands of solid skutterudite on both sides of the specimen. Branching out from the skutterudite into the carbonate are dendrites of cobaltite. Dense. Interesting. Looks great.
Safflorite, Skutterudite, NickelineCobalt/Gowganda, Ontario -Various Species
  • Item #22859
  • Safflorite, Skutterudite, Nickeline
  • 9.3x7.7x3.0 cm
  • Largest Crystal Size: 2mm
  • $75.00
  • Nipissing 404 Shaft
  • Cobalt
    Ontario, Canada
  • This specimen appears to be a botryoidal covering of safflorite with some nickeline in the interior of the botryoids, as well. The botryoidal minerals are largely covered with tiny, sparkling skutterudite crystals. Interesting specimen of these minerals.
Nickeline, Rammelsbergite, Skutterudite, SaffloriteCobalt/Gowganda, Ontario -Various Species
  • Item #22862
  • Nickeline, Rammelsbergite, Skutterudite, Safflorite
  • 6.7x6.9x3.4 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Nipissing 404 Shaft
  • Cobalt
    Ontario, Canada
  • This specimen of botryoidal arsenides shows layers of nickeline, rammelsbergite and skutterudite with a thin skin of safflorite in places. Interesting AND looks great!
Kainosite-(Y), ArsenidesCobalt/Gowganda, Ontario -Various Species
  • Item #22868
  • Kainosite-(Y), Arsenides
  • 6.4x3.1x3.0 cm
  • Largest Crystal Size: 1.5mm
  • $40.00
  • Cobalt Lode Mine
  • Cobalt
    Ontario, Canada
  • A single brick-red kainosite crystal with altered exterior, is perfectly perched on a quartz crystal and tucked away in a protective opening in this safflorite, arsenopyrite and skutterudite matrix.
 nickelineCobalt/Gowganda, Ontario -Various Species
  • Item #25157
  • nickeline
  • 6.4x4.9x3.0 cm
  • Largest Crystal Size: n/a
  • $35.00
  • Gowganda
    Ontario, Canada
  • A chunk of VERY dense, solid arsenides consisting mostly of nickeline from Gowganda, Ontario. Some carbonate veining and a little, probably, rammelsbergite. Fresh on one side and green oxidation on the other. Rich!
NickelineCobalt/Gowganda, Ontario -Various Species
  • Item #25167
  • Nickeline
  • 5.0x3.0x3.5 cm
  • Largest Crystal Size: n/a
  • $45.00
  • Lawson Mine
  • Cobalt
    Ontario, Canada
  • Jus a solid chunk of nickeline, with a light coating of annabergite. The nickeline shows the typical orangey-metallic colour where exposed. Rich!
ProustiteCobalt/Gowganda, Ontario -Various Species
  • Item #26317
  • Proustite
  • 3.5x2.3x1.4 cm
  • Largest Crystal Size: 6.5mm
  • $140.00
  • Miller Lake-O'Brien Mine
  • Cobalt-Gowganda
    Ontario, Canada
  • We don't often see proustite specimens with sharp crystals from the Cobalt-Gowganda area. Now this specimen does have significant bruising but that are many excellent, sharp, gemmy-red, well terminated proustite crystals in two knobs.
LollingiteCobalt/Gowganda, Ontario -Various Species
  • Item #26730
  • Lollingite
  • 9.1x5.9x4.7 cm
  • Largest Crystal Size: 1mm
  • $65.00
  • Siscoe Mine
  • Gowganda
    Ontario, Canada
  • This specimen shows a vein of lollinite from which the calcite has been removed to reveal botryoidal aggregates of lollingite crystals. The botryoids are composed of cyclic twins of lollingite -very sharp! Excellent example of this iron arsenide mineral.
Lollingite, QuartzCobalt/Gowganda, Ontario -Various Species
  • Item #26731
  • Lollingite, Quartz
  • 8.3x5.2x3.3 cm
  • Largest Crystal Size: 1mm
  • $75.00
  • Siscoe Mine
  • Gwganda
    Ontario, Canada
  • This specimen shows a vein of lollingite that has had the calcite etched away to reveal botryoidal aggregates of lollinite crystals. The lollingite is all pointed, very sharp, tiny cyclic twins. Excellent example of lollingite!
NickelineCobalt/Gowganda, Ontario -Various Species
  • Item #27037
  • Nickeline
  • 5.0x5.4x3.6 cm
  • Largest Crystal Size: 2mm
  • $40.00
  • Rustex Mine
  • Leith Township
    Ontario, Canada
  • A few, sharp, arsenide-veneer coated hexagonal nickeline crystals are scattered in other arsenide and chlorite matrix. Nice crystals!
Nickeline, arsenidesCobalt/Gowganda, Ontario -Various Species
  • Item #27040
  • Nickeline, arsenides
  • 1.2x1.0x0.7 cm
  • Largest Crystal Size: 2mm
  • $40.00
  • Rustex Mine
  • Cobalt
    Ontario, Canada
  • lots of sharp, hexagonal nickeline crystals on this specimen. Rarely do we see such good crystals of this nickel arsenide mineral.