Enter a clue or pattern or both:
The Clue
Precious metals (8 letter answer)
The Answer
IRIDIUMS
Tags
Notes
The answer IRIDIUMS is so rare that it appears less than once every 2500 puzzles.
Definition
IRIDIUM as a noun:
1. (iridium, Ir, atomic number 77) = a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium