Pentagonite perched in the space in which it formed. Lined with Chalcedony and perhaps ultra-miniature crystals of Heulandite this spectacularly dynamic matrix specimen is a perfect example of the crystals as they formed. Presents in multiple orientations with multiple opportunities for thru-lighting. Basalt matrix. Wagholi Quarry, Pune, Maharashtra, India. 1.75" x 1.3" x 1.25", 1.2 oz.