1) Lead mineral 2) Palladium mineral
Found on
https://www.crosswordclues.com/clue/polarite
Polarite (Pd,(Bi,Pb)), is an opaque, yellow-white mineral. Its crystals are orthorhombic pyramidal, but can only be seen through a microscope. It has a metallic luster and leaves a white streak. Polarite is rated 3.5 to 4 on the Mohs Scale. It was first described in 1969 for an occurrence in Talnakh, Norilsk in the Polar Ural Mountains in Russia. ...
Found on
http://en.wikipedia.org/wiki/Polarite
No exact match found.
