Two crossing crystals of lustrous and translucent, light apple-green prehnite are both doubly-terminated and reach 7 cm in length. They are actually incredible hollow casts, retaining the shape of the original anhydrite crystals, and the cavities inside transverse the length of each "finger." Here, the prehnite has really not formed stalactite-looking fingers as in other pieces here, but preserves a more typical, wide-breadth anhydrite habit and so the piece looks extremely geometric. Amazing!