Prehnite

Oval shaped group of Prehnite crystals that radiate out from the center. A translucent mass of solid crystals, this is one of the finest specimens from a large lot of recently mined and purchased Prehnite specimens from the Merelani Tanzanite mines. The base is naturally smooth and flat where it grew against a Calcite crystal. The larger crystals appear to have grown from a central sphere of Prehnite. Like nearly all of these, there are a couple nicked crystals, but regardless, it's a really good one.