Uraninite with Chalcocite and very newly formed, bright yellow, cauliflower formations. Crrystal needles in between the UV reactive secondaries of yellow and orange. Massive dense Uraninite var. Pitchblende from one of the most historic Uranium Mines in the country. Mi Vida Mine in Utah is picked clean and collapsing. There is an inaccessible road now and it lies in private property in a state of collapse and remediation. There will soon be a day when there it only exists in the history books. This piece is large and exceptionally hot. Beautiful under magnification. 
19x11.2x4.75
954 grams
700,000 cpm on Radiacode 103
About 1.2 Million CPM on Radiacode 110!