1) Orthorhombic mineral 2) Uranium mineral
Found on
https://www.crosswordclues.com/clue/francevillite
Francevillite is a uranyl-group vanadate mineral in the tyuyamunite series. Its chemical formula is (Ba,Pb)(UO2)2V2O8·5(H2O). Francevillite is a strongly radioactive mineral. It is typically orange, yellow or brownish yellow. It forms a series with curienite. ==Occurrence== Francevillite occurs in the oxidized zone of a lead-bearing uranium–van...
Found on
http://en.wikipedia.org/wiki/Francevillite
No exact match found.
