David K. Joyce Minerals

Grenville, Betafite (of Hogarth 1977), Zircon, Silver Crater Mine, Bancroft, Ontario

The Silver Crater Mine is famous for its excellent and large betafite crystals. As well, it has produced some wonderful zircon crystals, often attached to betafite crystals. Please note that any specimens with betafite are radioactive. The calcite body here is considered to, probably, be a carbonatite. Here are some very good examples from this locality. The cost to mail these specimens outside of Canada will be higher than usual because of the radioactivity of the specimens. I'll discuss this with interested purchasers.

All prices in Canadian dollars. For payment in US$, deduct 16% or multiply by 0.84.

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

BetafiteGrenville, Betafite (of Hogarth 1977), Zircon, Silver Crater Mine, Bancroft, Ontario
  • Item #12013
  • Betafite
  • 6.0x5.3x4.7 cm
  • Largest Crystal Size: 9mm
  • $45.00
  • Silver Crater Mine
  • Bancroft
    Ontario, Canada
  • Here is an interesting, different piece. This matrix of intergrown amphibole crystals has an open area that is lined with rough crystals of amphibole and nice betafite crystals.
Betafite, (of Hogarth. 1977)Grenville, Betafite (of Hogarth 1977), Zircon, Silver Crater Mine, Bancroft, Ontario
  • Item #16163
  • Betafite, (of Hogarth. 1977)
  • 11.0x8.7x7.0 cm
  • Largest Crystal Size: 12mm
  • $180.00
  • Silver Crater Mine
  • Bancroft
    Ontario, Canada
  • A larger, this plate of amphibole crystals with six or so, sharp, well formed betafite crystals. The betafite are clearly visible compared to the amphibole crystals due to the reddish coloration, contrasting with the black. We don't often see betafite crystals on matrix like this! Usually, they are loose crystals weathered out of calcite. Displays well.