This is actually one of the best Natrozippeite formations that I have seen preserved. The delicate needle like crystals are pronounced without magnification and appear as fuzzy yellow growths on Uraninite in Sandstone. Top notch for the species and from a very historic locality.
9x6.7x7 cm
353 grams
260,000 cpm on Radiacode 110
Mi Vida Mine, Utah
Top shelf i