This mineral is very unique in that it appears as a life form similar to lichen. The UV reaction is similar to Uranopilite but the form on this piece leaves it very hard to pin down. I havent seen another like this and kept this as a personal favorite due to its uniqueness. From a rich tailings pile in the desert near Green River Area, Utah
9.35x4.75x1
45.782 grams
10kcpm on Radiacode 103