David K. Joyce Minerals

Grenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario

The Davis Quarry, near Bancroft, Ontario is an old classic locality for the fluorescent variety of sodalite called "hackmanite". Some of these pieces exhibit the property of colour change after the U/V has been turned off, showing a purple colour, after-which they slowly fade back to white again. I believe this is called tenebrescence? I'll have to give you a quote for postage on some of the larger pieces. Rich specimens!

All prices in Canadian dollars. For payment in US$, deduct 20% or multiply by 0.8.

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

Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17666
  • Sodalite, var. Hackmanite
  • 9.8x9.0x5.3 cm
  • Largest Crystal Size: n/a
  • $60.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • A vey rich specimen of hackmanite with a little biotite associated. Looks great!
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17667
  • Sodalite, var. Hackmanite
  • 7.0x3.8x3.7 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • A specimen that has bright glowing hackmanite as a fairly high percentage of volume. Looks great!
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17670
  • Sodalite, var. Hackmanite
  • 12.5x10.5x7.2 cm
  • Largest Crystal Size: n/a
  • $85.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • A large fragment of nepheline syenite with a substantial portion as hackmanite. Also a couple of small cyrtolite crystals embedded in the specimen. Nice fluorescence!
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17665
  • Sodalite, var. Hackmanite
  • 9.0x6.5x3.2 cm
  • Largest Crystal Size: n/a
  • $50.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • Orange, ember-like hackmanite is well concentrated between nepheline and feldspar crystals. One big biotite crystal on the back.
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17668
  • Sodalite, var. Hackmanite
  • 8.4x3.7x3.7 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • Bright glowing hackmanite makes up most of this specimen. A little pyrrhotite associated.
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17663
  • Sodalite, var. Hackmanite
  • 5.4x5.0x2.9 cm
  • Largest Crystal Size: n/a
  • $40.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • Very rich fluorescent and tenebrescent hackmanite from the classic Davis Quarry.
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17662
  • Sodalite, var. Hackmanite
  • 10.5x8.0x4.1 cm
  • Largest Crystal Size: n/a
  • $60.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • Fiery orange hackmanite dominates the minerals in this specimen. Some biotite and nepheline present, as well.
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17659
  • Sodalite, var. Hackmanite
  • 12.8x9.0x5.4 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • A larger chunk of highly fluorescent hackmanite associated with nepheline and biotite.
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17660
  • Sodalite, var. Hackmanite
  • 11.3x8.8x6.8 cm
  • Largest Crystal Size: n/a
  • $75.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • Rich fluorescent-orange colouration in this piece of hackmanite associated with nepheline and biotite. Also a little pyrite in one corner.
Sodalite, var. HackmaniteGrenville, Sodalite var Hackmanite, Cancrinite, etc., Davis Quarry, Hastings County, Ontario
  • Item #17661
  • Sodalite, var. Hackmanite
  • 11.9x9.2x4.8 cm
  • Largest Crystal Size: n/a
  • $65.00
  • Davis Quarry
  • Dungannon Township, Hastings County
    Ontario, Canada
  • This specimen is mostly solid hackmanite! Gorgeous example!