David K. Joyce

Francon Quarry, Montreal, Quebec, Weloganite, Etc.

The Francon Quarry is famous as a source of a number of rare minerals. In fact it is he type locality for many, including Weloganite, a strontium-sodium-ziconium carbonate, named after W.E. Logan, the first director of the Geological Survey of Canada. The quarry has been closed for many years and is slowly being filled in with clean land fill. Here are a number of excellent specimens of that mineral. They are fro ma 25 year old cache of specimens to recently see the light of day, again!

All prices in Canadian dollars. For payment in US$, deduct 19% or multiply by 0.81.

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

Weloganite, Calcite, Quartz, Marcasite, etc.Francon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #12599
  • Weloganite, Calcite, Quartz, Marcasite, etc.
  • 9.0x5.3x6.0 cm
  • Largest Crystal Size: 19mm
  • $325.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A wonderful nest of sharp, yellowish weloganite crystals is perfectly exposed in this vug in phonolite. The crystals are classic, pseudohexagonal prisms with a light whitish outer coating and yellow internal colour. Excellent specimen1
Weloganite, Dresserite, Calcite, Quartz, Marcasite, etc.Francon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #12603
  • Weloganite, Dresserite, Calcite, Quartz, Marcasite, etc.
  • 5.9x5.0x4.9 cm
  • Largest Crystal Size: w-11mm, d-2mm
  • $145.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • This vug has two weloganite crystals in it and lots of sprays and hemispheres of white silky dresserite scattered about. Nice association piece! Displays perfectly.
Weloganite, Dresserite, Calcite, Quartz, Marcasite, etc.Francon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #12607
  • Weloganite, Dresserite, Calcite, Quartz, Marcasite, etc.
  • 11.0x9.7x6.2 cm
  • Largest Crystal Size: 16mm
  • $375.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A number of larger, very sharp weloganite crystals are nested in this shallow vug in phonolite rock. The weloganite crystals have very nice stria and sharp pseudohexagonal outline to show exhibit this mineral very well. There are also nice 2mm dresserite balls in the vug, as well. Displays well and is an exceptional specimen!
Weloganite, Calcite, Quartz, Marcasite, etc.Francon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #12605
  • Weloganite, Calcite, Quartz, Marcasite, etc.
  • 7.9x7.0x5.3 cm
  • Largest Crystal Size: 30mm
  • $245.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A couple of huge weloganite crystals and lots of smaller ones fill a vug in phonolite rock, along with many calcite and marcasite crystals. This piece is sawn on the back to reduce rock mass. Displays very well from a couple of different angles.
Weloganite, Calcite, Quartz, Marcasite, etc.Francon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #12606
  • Weloganite, Calcite, Quartz, Marcasite, etc.
  • 8.0x6.8x5.8 cm
  • Largest Crystal Size: 13mm
  • $180.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A very sharp, pseudohexagonal crystal of weloganite is perfectly exposed at the front edge of this calcite-quartz-marcasite vug in phonolite. A number of sharp, smaller weloganite crystals as well. Very nice for display!
Weloganite, Calcite, MarcasiteFrancon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #20355
  • Weloganite, Calcite, Marcasite
  • 4.5x5.0x5.7 cm
  • Largest Crystal Size: 5mm
  • $55.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A lovely vug in alkaline rock revealing a number of very sharp, striated, hemimorphic weloganite crystals. Sawn on bottom and two sides. Nice specimen! Shows perfectly.
Weloganite, QuartzFrancon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #20370
  • Weloganite, Quartz
  • 5.4x5.5x4.0 cm
  • Largest Crystal Size: 14mm
  • $85.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • Lots of well formed, chalky-white crystals of weloganite, including a cluster of several crystals on one side of the vug. Excellent example that shows well.
Weloganite, QuartzFrancon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #20374
  • Weloganite, Quartz
  • 2.8x2.2x1.7 cm
  • Largest Crystal Size: 10mm
  • $110.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A great-looking specimen showing a near-perfect weloganite crystal on one side of a matrix, associated with calcite and small quartz crystals. Very good specimen!
Weloganite, QuartzFrancon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #20378
  • Weloganite, Quartz
  • 9.4x7.7x4.5 cm
  • Largest Crystal Size: 3mm
  • $45.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • Lots of extremely-well formed white weloganite crystals associated with a couple of generations of quartz crystals in this vug. Nice crystals!
WeloganiteFrancon Quarry, Montreal, Quebec,  Weloganite, Etc.
  • Item #20394
  • Weloganite
  • 5.5x4.5x5.0 cm
  • Largest Crystal Size: 9mm
  • $55.00
  • Francon Quarry
  • Montreal
    Quebec, Canada
  • A couple of sharp, well-formed, white weloganite crystals in a vug in matrix. A perfect specimen!