Mineralpedia Details for Metazeunerite
Named as a mineral relating to zeunerite with lower hydration, hence the prefix meta-. Metazeunerite is an uncommon mineral that occurs in oxidized deposits of arsenic-bearing hydrothermal uranium. Many of Metazeunerite’s localities are minor, and few have good specimens, but well studied material comes from localities in Germany, England, France, the United States, Australia, and Brazil. Metazeunerite is highly radioactive. It fluoresces a pastel yellow-green under long-wave and short-wave ultraviolet light.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/metazeunerite.pdf
Metazeunerite from Majuba Hill mine, Pershing Co., Nevada, United States
Green, platy, square in outline crystals to 1mm.
Metazeunerite from Florida Canyon mine, Pershing Co., Nevada, United States
Thin platy green crystals to 7mm on siltsone matrix. Self-collected in 1998.