Description
Species: Thorite, Uranopyrochlore
Locality: MacDonald Mine, Monteagle Township, Hastings County, Ontario, Canada
Size: 7.7 x 4.8 x 6.1 cm.
Ex. Chet Lemanski Collection
Nice fairly rich specimen of waxy black thorite and uranopyrochlore in salmon-colored calcite matrix from the well-known MacDonald mine in Ontario, Canada. Measures ~75,000 CPM on my Ludlum Model 3 Counter with the 44-9 probe. Rare!