Heulandite-Ca on Blue Chalcedony

Item Description

A gorgeous display specimen from the prolific Deccan Trap in India featuring pearly, translucent, colorless "sheaf"-like groups of Heulandite-Ca measuring up to 4.3 cm, which are oriented into a very pleasing arrangement, sitting on a matrix rare blue colored Chalcedony plus white "snowball"-esque groups of Quartz on basalt matrix. There are a few bruises on the Heulandites, but it's largely in good condition, and it displays wonderfully as you can see from the video.
From the collection of William ("Bill") (1927-2006) and Anne (1928-2021) Cook of Cleveland, Ohio (#11801). This husband and wife duo were actively involved in the mineral world for many decades. Bill was a PhD geologist, and Anne was a mathematician, and they both were very serious mineral collectors. Bill served for many years as adjunct curator of mineralogy at the Cleveland Museum of Natural History, and Anne was inducted into the Micromounters' Hall of Fame on October 12, 2019. Both Bill and Anne, at various times, served as president both of the Mineralogical Society of Cleveland and of the Micromineral Society of the Cleveland Museum of Natural History, and Anne was inducted into the mi The rare barium lithium beryllium phosphate Wilancookite was named in their honor in 2015.