Intensity of quartz cathodoluminescence and trace-element content in quartz from the porphyry copper deposit at Butte, Montana

@lockwooddewitt @SteveBFreo There is also this paper on Butte, Montana - although I can’t remember enough about to know it exactly fits what you need. The same author had other papers on qtz veins at that locations. https://t.co/HJfXOLwNCy