Uranpyrochlore (Ellsworthite) - MacDonald Mine, Monteagle Township, Hastings Highlands Municipality, Hastings County, Ontario, Canada

(Ca,U,Ce)₂(Nb,Ti,Ta)₂O₆(OH,F)                            

An extremely rich and large specimen of this Uranium-bearing mineral from a classic Canadian locale. The black Uranpyrochlore is scattered throughout the matrix. This site has been rehabilitated and is no longer producing any specimens, so whatever is on the market is all that there is available. Don't miss your chance to grab a piece! This specimen comes from my personal collection.

Approx. specimen size: 70mm x 40mm x 30mm

Approx. activity using an SE International Ranger EXP: 64000 cpm