David K. Joyce

Mont Saint-Hilaire, Thomasclarkite, Oneillite

Here are some very good specimens of these unusual minerals.

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.

Thomasclarkite-(Y), Brookite, SideriteMont Saint-Hilaire, Thomasclarkite, Oneillite
  • Item #24069
  • Thomasclarkite-(Y), Brookite, Siderite
  • Perky cm
  • Largest Crystal Size: micro
  • $55.00
  • Mont Saint-Hilaire

  • Quebec, Canada
  • A couple of light yellowish, blocky, striated crystals of this rare mineral on a matrix of enmeshed brookite crystals and siderite. Type Locality!