1) Triclinic mineral 2) Uranium mineral
Found on
https://www.crosswordclues.com/clue/uranopilite
Uranopilite is a minor ore of uranium with the chemistry (UO2)6SO4(OH)6O2·12H2O or, Hydrated Uranyl Sulfate Hydroxide. As with many uranyl minerals, it is fluorescent and radioactive. It is straw yellow in normal light. Uranopilite fluoresces a bright green under ultraviolet light. Uranopilite contains clusters of six uranyl pentagonal bipyramids...
Found on
http://en.wikipedia.org/wiki/Uranopilite
No exact match found.
