Quartz with Calcite ''cast'' impressions

Item Description

These are some of the most distinctive Quartz specimens from any locality. These are unique and singular due to the unusual and remarkable impressions in the actual Quartz crystal faces, which were created by thin crystals Calcite that were intergrown with the Quartz, and later dissolved away forming striated "casts" on the surface of the Quartz. This piece is a sharp, lustrous, gemmy, colorless, Quartz crystal from the famous Bor Pit in Dalnegorsk, Russia with beautiful striated "casts" all over. This unique piece is complete all-around, with a contact on the back, near the termination. From the collection of William ("Bill") (1927-2006) and Anne (1928-2021) Cook of Cleveland, Ohio (#12819). 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.