Prehnite
Merelani Hills, Arusha, Tanzania
4 x 4 x 3 cm — miniature
Specimen ID: mm/R603
Cluster of translucent blue Prehnite crystals from the Merelani Tanzanite mines. A floater, perfect all around and undamaged. Interestingly, there are clusters of the typical yellow Prehnite attached to the back. Blue Prehnite from Merelani is much less common than the yellow, and this one is exceptional. Ex. Mike Keim.