Rare-gem-nevadaite

Published on February 14, 2016 at 900 × 630 (Full Size Image) in Happy Valentine’s Day: A list of the rarest minerals on Earth

Nevadaite is a category 1 and 2 rarity–formed from the scarce elements vanadium and copper under very restricted environmental conditions. Credit: Photo : Robert Downs, University of Nevada / Science World Report