David K. Joyce

Mont Saint-Hilaire, Eirikite-Leifite

Here are some excellent specimens of sprays of eirikite-leifite in a matrices of interlocking, platy, sharp catapleiite and rhodochrosite crystals. There are other rare minerals mixed into and on the specimen. In these specimens, the white sprays have been consistently analysed as crystals that phase in and out of leifite and eirikite, both members of the Leifite Group, have similar crystal structure and chemistry and differ only in the amount and positions of OH and F ions in the structure. Difficult to analyse. Really nice!!!

All prices in Canadian dollars. For payment in US$, deduct 21% or multiply by 0.79.

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

Eirikite, Leifite, Catapleiite, etc.Mont Saint-Hilaire, Eirikite-Leifite
  • Item #22966
  • Eirikite, Leifite, Catapleiite, etc.
  • 3.4x2.9x2.3 cm
  • Largest Crystal Size: 32mm
  • $85.00
  • Mont Saint-Hilaire

  • Quebec, Canada
  • This very long spray of white, acicular eirikite-leifite crystals is in a matrix entirely composed of interlocking rhodochrosite crystals, sharp, 3-4mm platy catapleiite crystals plus natrolite crystals. What a cool matrix! These kind of sprays of eirikite-leifite seem to always contain both minerals which phase in and out of each other.
Eirikite, Leifite, CatapleiiteMont Saint-Hilaire, Eirikite-Leifite
  • Item #22968
  • Eirikite, Leifite, Catapleiite
  • 4.2x3.7x2.6 cm
  • Largest Crystal Size: 17mm
  • $75.00
  • Mont Saint-Hilaire

  • Quebec, Canada
  • The main feature of this specimen is the large sprays of white, acicular eirikite-leifite crystals in a matrix composed of polylithionite, natrolite crystals, sharp, 3-4mm platy catapleiite crystals plus albite and rhodochrosite crystals. These kind of sprays of eirikite-leifite seem to always contain both minerals which phase in and out of each other.