David K. Joyce

Grenville -Bear Lake Diggings, nr. Gooderham, Ontario

The "Bear Lake Diggings" are a favourite, easy to get at place for beginners and advanced collectors alike to dig for apatite, titanite, orthoclase and biotite. It is not always easy to find good specimens, though. If you went there and came away empty handed, here are some nice specimens for you! BTW, the primary amphibole found at Bear Lake has been re-defined as ferri-fluoro-katophorite, NOT fluor magnesiokatophorite, NOT magnesiokatophorite and NOT katophorite! Please change your labels! This is the type locality for ferri-fluor-katophorite.

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.

Ferri-FluorokatophoriteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #18241
  • Ferri-Fluorokatophorite
  • 5.2x4.3x3.4 cm
  • Largest Crystal Size: as above
  • $60.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A couple of interlocking textbook crystals of this rare amphibole group mineral. Very nice!
Ferri-FluorokatophoriteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #19046
  • Ferri-Fluorokatophorite
  • 4.1x4.0x3.1 cm
  • Largest Crystal Size: 26mm
  • $45.00
  • Bear Lake Diggings
  • Haliburton Co.
    Ontario, Canada
  • A nice cluster of two doubly terminated FFK crystals. Pitch black. Handsome!
Titanite, OrthoclaseGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #17699
  • Titanite, Orthoclase
  • 4.8x4.0x2.7 cm
  • Largest Crystal Size: o-45mm, t-22mm
  • $60.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • This specimen consists of a pinkish orthoclase crystal with s number of brown, lustrous titanite crystals at one end. Nice sample from this now-closed locality.
KatophoriteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #26374
  • Katophorite
  • 5.8x2.2x1.8 cm
  • Largest Crystal Size: as above
  • $55.00
  • Bear Lake Diggings
  • Haliburton Co.
    Ontario, Canada
  • This is a very nice twinned crystal of this unusual amphibole group mineral. It shows notches on the termination which are re-entrant angles. As well, there are lines on two opposite sides of the crystal which delineate the twin plane and boundary between the two twin members. Nice example!
Orthoclase, TitaniteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #27272
  • Orthoclase, Titanite
  • 8.5x6.4x6.2 cm
  • Largest Crystal Size: m-65mm, t-7mm
  • $75.00
  • Bear Lake Diggings
  • Gooderham
    Ontario, Canada
  • A handsome cluster of sharp microcline crystals, featuring two large, intergrown crystals and a number of smaller, well formed crystals. The feldspars are sprinkled with dark-brown, sharp titanite crystals. Original patina. Nice looking!