CL Web
A lot of good quality CL images
Laboratory of sedimentary system
A few CL images of quartz and carbonates
Lumic - CL Photo Gallery
Collection of very high quality CL images provided by Lumic – a manufacturer of CL microscopes
The Fluorescent Mineral Society
International organization of professional mineralogists, gemologists, amateur collectors, and others who study and collect fluorescent minerals
University of Leeds - School of Earth Sciences
CL images of cataclastic fault rock evolution