Autunite, Uranophane, Uraninite: Marshall Pass District, Saguache County, Colorado USA

Description

Species: Autunite, Uranophane, Uraninite

Locality: Marshall Pass District, Saguache County, Colorado USA

Size: 3.7 x 4 x 6.9 (62 Grams) 

Ex. Jack Nieburger Collection

An unusual specimen of vivid yellow and green autunite, uranophane and more on uraninite from the classic Marshall Pass area of Colorado. Measures ~125,000 CPM on my Ludlum Model 3 Counter with the 44-9 probe. Rare!