URANIUM ORE: Uraninite, Gummite RADIATION EMISSION: 35,000/160,000 CPM WEIGHT: 389 grams SIZE: 4.5" This attractive sample contains an eye-catching mix of black Uraninite and yellow/brown Gummite. It's hot, emitting 35,000 CPM on a beta/gamma probe and 160,000 CPM on a pancake...