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M761 - Prehnite after Anhydrite $ 240 Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA small cabinet - 6 x 6 x 2.5 cm Translucent apple green Prehnite cast that formed over a flat, tabular Anhydrite that then dissolved away leaving this hollow cast. Botryoidal, translucent Prehnite forms over the front and back with the shape of the former Anhyrite easily seen when looking up from the opening in the bottom. A wonderful example from long ago, and not as jumbled as some larger pieces are - this is a nice distinct cast of a single large crystal. ©2010-2018 Marin Mineral |