David K. Joyce Minerals

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 22% or multiply by 0.78.

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

Orthoclase, TitaniteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #5784
  • Orthoclase, Titanite
  • 4.5x2.6x1.9 cm
  • Largest Crystal Size: f-45mm, t7mm
  • $30.00
  • Bear Lake Diggings
  • Gooderham
    Ontario, Canada
  • A sharp orthoclase crystal has a cluster of lustrous titanite cryatals attached to its side.
OrthoclaseGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #5785
  • Orthoclase
  • 4.1x3.8x2.8 cm
  • Largest Crystal Size: 42mm
  • $35.00
  • Bear Lake Diggings
  • Gooderham
    Ontario, Canada
  • A very good looking, excellent quality specimen of orthoclase feldspar from the Bear Lake Diggings, the classic Grenville calcite vein-dyke locality. A couple of small apatite crystals are attached to one side of it.
TitaniteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #6421
  • Titanite
  • 3.0x1.9x1.7 cm
  • Largest Crystal Size: 30mm
  • $35.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • These special types of titanites are, arguably, more desired than the regular brown ones. They are a creamy white colour and lustrous. Some people say that they are titanite altered to anatase which would make them pseudomorphs. Others say that they are just titanite damaged by teeny frost fractures. This specimen is a very nice, twinned crystal as you can see by the prominent re-entrant angle. A nice one!
Ferri-FluorokatophoriteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #17851
  • Ferri-Fluorokatophorite
  • 5.0x3.5x3.5 cm
  • Largest Crystal Size: 25mm
  • $40.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A nice cluster of sharp, lustrous, pitch-black crystals of this unusual amphibole mineral, associated with a rounded crystal of fluorapatite. Sits well for display.
TitaniteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #7470
  • Titanite
  • 2.6x2.6x1.3 cm
  • Largest Crystal Size: as above
  • $45.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • These types of crystals have been called leucoxene, in the past and have been considered to be anatase pseudomorphs after titanite. Others claim that they are just creamy-coloured titanite, the colour due to micro-cracks caused, possible by frost/freezing-thawing or some other mechanism. WHATEVER they are they are very cool looking! They are sharp crystals exhibiting a "v" re-entrant angle on the top, caused by the two converging crystals. Here is a very good example.
Ferri-fluorokatophoriteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #17724
  • Ferri-fluorokatophorite
  • 8.8x7.8x4.4 cm
  • Largest Crystal Size: 10mm
  • $75.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A nice plate of pitch-black, well formed ferri-fluorokatophorite crystals with a little feldspar. Verithane coated. Nice specimen of this amphibole mineral.
TitaniteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #17876
  • Titanite
  • 6.0x5.9x3.6 cm
  • Largest Crystal Size: 30mm
  • $75.00
  • Bear Lake Diggings
  • nr. Gooderham
    Ontario, Canada
  • A sharp, deep-brown titanite crystal on very corroded amphibole and a little apatite.
Titanite, FluorapatiteGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #11212
  • Titanite, Fluorapatite
  • 5.4x3.2x3.6 cm
  • Largest Crystal Size: 23mm
  • $40.00
  • Bear Lake Diggings
  • nr. Gooderham, Haliburton Co.
    Ontario, Canada
  • A cluster of titanite crystals viewable from several angles, associated with a couple of fluorapatite crystals.
Titanite, OrthoclaseGrenville -Bear Lake Diggings, nr. Gooderham, Ontario
  • Item #11220
  • Titanite, Orthoclase
  • 2.8x2.7x2.5 cm
  • Largest Crystal Size: 28mm
  • $30.00
  • Bear Lake Diggings
  • nr. Gooderham, Haliburton Co.
    Ontario, Canada
  • A very nice, well formed. slightly altered titanite crystal, attached to a similar sized orthoclase crystal. Thumbnail-sized! Looks good from both sides.
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.