http://www.newsweek.com/green-olivine-gems-fall-sky-mount-kilauea-volcano-eruption-hawaii-977336 > There is one strange, but exciting side-effect of Mount Kilauea’s eruption: the volcano is spewing green gems. > Mount Kilauea is oozing lava across Hawaiian neighborhoods and has destroyed dozens of structures and injured one man. There are also many other strange effects of the volcano erupting, tiny beats of a green mineral called “olivine” have rained from the sky in some areas. The highest quality olivine is called “peridot” and can be made into jewelry.