Unusual Stilbite included by clay (ex Jack Halpern Coll.)

Item Description

A fine, cabinet-sized specimen that is both unusual and aesthetic, this is a bizarre stilbite from old finds and from the collection of the great Jack Halpern of San Francisco. Never seen one quite like it! Indian minerals are common , sure, but not like this. Curved crystals are an unusual habit for Stilbite and these are dramatic; plus the color on this specimen is also very unusual (it is due to an unknown species of clay or kaolinite mineral included within) . The crystals are almost flower-like and they range up to an impressive 5-6 cm long. The tan to butterscotch coloration is simply bizarre in person, and it looks biological in growth which adds to the uncommon, yet attractive, nature of these crystals. Comes with a custom engraved base ($175 value) for free. For more on Jack, who is still collecting as he hits 102 this summer, see: https://mineralogicalrecord.com/newbiography/image-300/