Donald K. Olson
Unusual blue Prehnite, from a recent find in Merelani, Tanzania. The color of this Prehnite is unique and distinct, and such color has not been found anywhere else in the world as of yet. This specimen was seen and photographed at the booth of Donald K. Olson at the 2018 Tucson InnSuites show.
Merelani Hills, Arusha, Tanzania