Description
Species: Samarskite-(Y)
Locality: Oregon Pegmatites, South Platte District, Jefferson County, Colorado USA
Size: 8 x 4.5 x 3.8 cm. (168 grams)
Ex. Jack Nieburger Collection
A nice solid large specimen of crudely-crystallized samarskite from this classic Colorado locality. Very nice example of this uncommon material. Measures ~85,000 CPM on my Ludlum Model 3 counter with the 44-9 probe. Rare!