A very sharp, gem clear and undamaged prism of Phenakite that exhibits the rare twin form that I believe was only found at this location once about 8 years ago. The termination has the small re-entrant notches and extra faces that are a textbook example of a rotated twin. Granted this type of twinning does not leap out at you, but it is distinct and clear. Even without it, the crystal is a very good Phenakite on its own.
