
1) Molybdenum mineral 2) Orthorhombic mineral
Found on
https://www.crosswordclues.com/clue/ferrimolybdite

Ferrimolybdite is a hydrous iron molybdate mineral with formula: Fe3+2(MoO4)3·8(H2O) or Fe3+2(MoO4)3·n(H2O). It forms coatings and radial aggregates of soft yellow needles which crystallize in the orthorhombic system. ==Discovery and occurrence== It was first described in 1914 for an occurrence in the Alekseevskii Mine in the Karysh River Basin,...
Found on
http://en.wikipedia.org/wiki/Ferrimolybdite
No exact match found.