David K. Joyce

Cobalt/Gowganda, Ontario -Various Species, Page Two

More interesting minerals from the Cobalt silver mining area. Most have been confirmed by electron microprobe analysis.

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.

Item #21221 Lollingite, Arsenopyrite, Skutterudite 10.5x4.7x4.6 cm Largest Crystal Size: 2mm $140.00 Beaver Mine Cobalt Ontario, Canada This is an interesting one! The main part of the specimen is very prominent lollingite botryoids that are totally covered with lustrous, well-formed crystals of arsenopyrite and some skutteruditer. This is a significant piece! Displays very well.	Item #21511 Arsenopyrite, Skutterudite 3.7x2.7x2.0 cm Largest Crystal Size: a-2mm $35.00 Langis Mine Casey Township Ontario, Canada A specimen of lustrous, razor-sharp arsenopyrite crystals scattered across a mound of botryoidal skutterudite.	Item #21513 Safflorite, Skutterudite 9.2x6.5x3.4 cm Largest Crystal Size: 2mm $65.00 Langis Mine Casey Township Ontario, Canada This specimen is a vein section that has had the carbonates etched out of it to reveal botryoidal safflorite. The safflorite is not smooth but composed of many bladed crystals of safflorite. Nice specimen of this arsenide mineral!	Item #21514 Arsenopyrite, Skutterudite 5.7x7.2x5.5 cm Largest Crystal Size: 2mm $55.00 Langis Mine Casey Township Ontario, Canada The top portion of this specimen has had the calcite removed to reveal many lustrous arsenopyrite crystals on botryoidal skutterudite. Possibly other arsenides. Interesting!
Item #21516 Arsenopyrite, Skutterudite 4.5x3.5x1.5 cm Largest Crystal Size: 1.5mm $35.00 Langis Mine Casey Township Canada razor sharp arsenopyrite crystals are scattered around the botryoidal skutterudite on this specimen. Good example!	Item #21518 Arsenopyrite, Safflorite 9.0x8.0x5.8 cm Largest Crystal Size: 2mm $160.00 Right of Way Mine Cobalt Ontario, Canada Most of what you can see on the front of this specimen is a concave area of sparkling arsenopyrite crystals. The crystals cover botryoidal safflorite that is naturally fractured in vertical cracks. The calcite has been removed from this specimen to reveal the unique structure. Displays exceedingly well!	Item #27074 Arsenopyrite 12.5x8.0x3.6 cm Largest Crystal Size: n/a $45.00 Cobalt Ontario, Canada Just a big chunk of, I believe, arsenopyrite, possibly lollingite wit ha more generous smattering of chlorite flakes embedded in it. It comes with antique label denoting it is glaucodot with native arsenic, etc. I don't think so. It is a nice old-time piece though!	Item #26732 Safflorite 9.7x6.3x4.0 cm Largest Crystal Size: n/a $85.00 Langis Mine Casey Township Ontario, Canada A very heavy, dense plate of botryoidal safflorite. The safflorite is present as fine grained botryoids and as botryoids that have imprints of calcite crystals. Excellent!
Item #27060 Rammelsbergite, Nickeline 9.4x4.5x0.8 cm Largest Crystal Size: n/a $45.00 Trout Lake Mine Silver Center Ontario, Canada Discrete mineral phases of the various minerals can often be difficult to observe. Many of the arsenide minerals occur, mostly, in mixtures of minerals, often too intimate to analyse or observe. This specimen has excellent differentiation of two phases and includes nickeline, mostly at the core of the lobular growths and lighter, more silvery, rammelsbergite on the outer rims of the growths. They have been analysed. This one is cut and polished on one side just sawn on the other side.	Item #27044 Acanthite, ps Argentite 2.3x1.8x1.3 cm Largest Crystal Size: 10mm $35.00 Cobalt Ontario, Canada A solid mass of black silver sulphide that is a rounded group of "argentite crystals". An old timer!	Item #27958 Nickeline, Safflorite 8.8x5.3x1.4 cm Largest Crystal Size: n/a $55.00 Cobalt Ontario, Canada No silver in this one, just rich lobular aggregates of nickeline and spikey, round groups of safflorite crystals. There is also a darker phase in the nickeline but I don't know what it is. I expect rammelsbergite. Dense!