Muscovite var: Sericite pseudomorph after Orthoclase (RARE locality specimen)

Item Description

A notably hard to find specimen from the Ice River Alkaline Complex in British Columbia featuring cream colored pseudomorphs of Sericite (a variety of Muscovite Mica) replacing crystals of Orthoclase Feldspar, which measure up to about 6 mm, associated with prismatic, translucent, colorless/white crystals of what the label supposes could be Wollastonite measuring up to about 2.6 cm long on matrix. I've never seen another specimen of this material, so if you collect pseudomorphs or minerals of Canada, don't miss out on this incredibly rare locality piece.
From the collection of William ("Bill") (1927-2006) and Anne (1928-2021) Cook of Cleveland, Ohio (#6400). 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. The rare barium lithium beryllium phosphate Wilancookite was named in their honor in 2015.