Watch a video of this specimen by following the Vimeo link below: https://vimeo.com/1184940149/8d3ec6f4e1 Les Oudots open pit mine, operated by COGEMA, was active during two years only, from 1980 to 1982 and produced 51.3t of uranium metal. During this period, Les Oudots also turned out to be one of the very best localities in France for autunite and even a significant locality at the worldwide scale! Today, the specimens are quite hard to come by, especially in good condition and with decently sized crystals. Here is a very nice, representative specimen of autunite from Les Oudots mine in Morvan, yellow-green tabular stacked crystals on a granitic host rock! Slightly radioactive, requires an accordingly proper handling. Ex collection Lefebvre. Jean-Claude Lefebvre was born on May 8, 1942, in Liège. A graduate in geography, he began his career as a teacher before becoming a high school principal. A man of wide-ranging interests, he was passionate about astronomy, travel, and numismatics—as well as mineralogy, to which he devoted over thirty years, building his collection between 1980 and 2010. His approach was that of a rigorous and deeply committed autodidact. He initially developed his collection horizontally, aiming to represent as many mineral species as possible, more than 380 in total. He then refined it vertically, focusing on aesthetics, specimen integrity, and overall balance. He possessed a keen eye, that rare ability to instantly recognize the right piece, one that required no compromise. Among the highlights of his collection are an outstanding group of specimens from the Congo, along with a remarkable suite from Mont Saint-Hilaire, Canada, a legendary locality renowned for its rare species and complex crystal formations.