Mineralpedia Details for Liebigite
Named in honor of Justus von Liebig, a professor and German chemist at the University of Munich in Germany, who is credited as the founder of analytical chemistry. Liebigite is an uncommon mineral that occurs as an alteration product of uraninite in alkaline carbonatite solutions. It can be found in localities in Turkey, the Czech Republic, Germany, Poland, England, Scotland, France, the USA, Canada, Japan, and the Democratic Republic of the Congo, among others. Liebigite is radioactive and will fluoresce a strong green to blue-green under both short-and long-wave ultraviolet light.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/liebigite.pdf
Liebigite from Midnite mine, Stevens Co., Washington, United States
Vivid, greenish yellow tabular crystals to 1mm.